07.14: An object moves to the Eaxdi n1y :z9qoj4 xb9)ost across a frictionless surface with constant speed. A person then applies a constant force 9 1xj z4 qon)dix9ybo:to the North on the object. What is the resulting path that the object takes? A. A straight line path partly Eastward, partly Northward

  07.15: Two identical mass objects a0-v; yatbkh hy141 clore launched with the same speed from the same starty a-bt1cvhk4; hyl0o1ing location. Object 1 is launched at an angle of $30^{\circ}$ above the horizontal while Object 2 is launched at an angle of $60^{\circ}$ above the horizontal. Ignore air resistance and consider the flight of each object from launch until it returns to the same launch height above the ground. Which object returns to the starting height with the greatest speed?

  07.16: Two identical mas/f7l6nw9ix 6 ux (;gzpc(dqwds objects are launched with the same speed from the same starting location. Object 1 is launched at an anglx gf6d i7( lxp(c6u/wn ;9qdzwe of $30^{\circ}$ above the horizontal while Object 2 is launched at an angle of $60^{\circ}$ above the horizontal. Ignore air resistance and consider the flight of each object from launch until it returns to the same launch height above the ground. Which object experiences the greatest change in the linear momentum?

  94.14: An arrow is aimed horizolke wqf4e3rewfw*zpp+zj( vy ,46e +naap /15ntally, directly at the center of a target 20 m away. The arrow hits 0.050 m below the center of the target. Neglecting air resistance, what+w5ljeeqfaya43f n 1kezwe,rwpp*(z 4+6/ pv was the initial speed of the arrow?

  03.05: Two arrows are lzp6f;n/apxt 0aunched at the same time with the same speed. A at an angle greater than 45 degrees, and ara6/pn0px f;zt row B at an angle less than 45 degrees. Both land at the same spot on the ground. Which arrow arrives first?

  95.19: A baseball is thrown horizoe; 9kt/c.kb3bmk3 1 g)pidb8nqbbm c2ntally from a cliff. At the same instant, a bowling ball is dropped from the same height. Assuming air resistance can be ignore mnb bkckq.p/ge;d8k39 1 bt3cbi2bm)d, which of the following statements is correct?

  96.08: A ball is rolled off the edge of a horizontal 2: bgyje8n8vvgc 3t(htable. The ball has an initial speedhvbtegc(28g y3n8j: v $v_0$ and lands on the floor some distance from the base of the table. Which of the following statements concerning the fall of the ball is FALSE?

  00.36: A ball is thrown vertically upwy6g62( sey,izs wmw/fm ,l22tmv fd(k ard with an initial velocity v and an initefw(kyl tfvms2w62z 2mmys/,6i( g, dial kinetic energy $E_k$. When the ball is half way to the top of its flight, what is its velocity and its kinetic energy respectively?

  00.37: During a recent winter storm, bales of hay had n(6( dc;tm.twbwx;qu4f8nxivl j2+vo) v+mito be dropped from an airplane to a herd of cattle below. Assume the airplane bf ;t(t nd2vv o(.w6vlqiumj) i ;4xx wnmc8++flew horizontally at an altitude of 180 m with a constant velocity of 50 m/s and dropped one bail of hay every two seconds. It is reasonable to assume that air resistance will be negligible for this situation. As the bales are falling through the air, what will happen to their distance of separation?

  00.38: During a recent wintoz 1 iemis1 pq/2any(6er storm, bales of hay had to be dropped from an airplane to a herd of cattle below. Assume the airplane flew horizontally at an altitude of 180 m with a constant velocity of 50 m/s and dropped one bail of hay every two seconds. It is reasonable to assume that air resistance will be negligible for this situation. About how far apar1 ie/(pqiay26sz nm1 ot from each other will the bales land on the ground?

  01.14: A football is kicked a distance fw 15 gf,mpmr45qsmw: of 50 yards down field. Neglecting air resistance, which of the following statements wouw54,:5fwpfq mrmg1 msld be INCORRECT when the football reaches its highest point.

  03.10: A ball is thrown into the air at an ;, l1sk6u:4 czy*sqauzdke 0- dgyx y1angle $\theta$ as measured from the horizontal with a velocity $v$. The horizontal velocity of the ball will be directly proportional to which of the following

  05.35: An arrow is shot horizoqxwy+ vs) /h-p65x -qw;yuwd nntally toward a target 20 m away. In traveling first 5m horizontally, the arrow falls 0.2 m. In tra-u-y qws)d5h +vqxp/ n6y;wwxveling the next 5 m horizontally it will fall a additional

  06.04: An arrow is shot from a boobivxz+/ ntiba;,lg1h .o6u*d gs* .yw at an angle of $40^{\circ}$ from the horizontal at a speed of 24.0 m/s. Ignoring air resistance, what is the arrow’s maximum height above its launch point?

  09.20: A projectile launched from the ground landed a horizontaljm 1ibe (rmypvc1a0s77+5iuo distance of 120aiu(1miv +r5 1p7ej07scyo bm.0 m from its launch point. The projectile was in the air for a time of 4.00 seconds. If the projectile landed at the same vertical position from which it was launched, what was the launch speed of the projectile? Ignore air resistance.

  13.14: A small ball is 4g*k ls 5)nghh1;)fw tx3yrw uthrown at an angle of $30.0^{\circ}$ above the horizontal ground with a speed of 20 m/s. To what maximum height above the launch point does the ball rise during its motion? Ignore air resistance.

  13.43: A small 1.0kg mass is launched from the topb8kao5vtczkm m-r6,q;j-u vlxx 54c1 of a cliff with speed $V$ at an angle of $30.0^{\circ}$ above the horizontal. When it reaches the ground, its velocity is directed at $45.0^{\circ}$ below the horizontal. Which one of the following choices is the magnitude of the total impulse that was imparted to the mass during its flight? Ignore air resistance.

  09.09: The free fall trajectory of an object thrown horizontall+:(1 ea6 w p+t)z c;64px ix8snxtuj iocfdak)y from the top of a building is shown as the dashed line in the figure. Which sets of arrows best correspond to the directions of the velocity and of the acceleration for the object at the point labeled P o+46c w+edao p;n8)cu)spt 6 k axi(xtz:ij1xfn the trajectory?

  02.41: A person throws a small op)tieh0,lx* cbject from the top of a building at an angle of t0hpi)*x,e lc$30^{\circ}$ above the horizontal. At the instant that the object returns to the same height from which it was thrown, at what rate is the speed of the object changing? Ignore air resistance and let g be the acceleration due to gravity.

  15.21: An object is launched from the ggj*qp ,;; .a.zhs7n hiqp +exbround at an angle of $60^{\circ}$ above the horizontal with a speed of 20.0 m/s. What is the magnitude of the average velocity of the object from just after launch until it reaches its highest vertical position during flight?

  16.41: A small object is laungo 2j-1bbxox /2yyk,vched 30° above the horizontal from a height of 10.0 above the ground. If the initial speed of the object is 15.0 m/s, at what angle below the hoxjbv -ok21yxgo /yb,2rizontal is the object moving when it reaches the ground? Ignore air resistance.

  17.32: A projectile is launched at an angle of 40° above the horizonr3i(h a:rt 8axic .jl(tal with a speed of 30 m/c 8jihl3rri a( :t(.xas . How much time passes before the position of the projectile makes an angle of 20° above the horizontal from the original launch point?

  14.40: A small 1.35-gram mass is launched from rhz :(lx /xe6t/ktkv1q 3pa:pthe top of a cliff at an angle of eq :zt(khpkxl 3 vta6/p:rx/1$15.9^{\circ}$ above the horizontal. When the mass reaches the ground 4.33 seconds later, its velocity is directed at $34.4^{\circ}$ below the horizontal. What is the speed of the mass when it reaches the ground? (ignore air resistance)