07.14: An object moves to the East across a frictionlm nm.,fj: 3v.nogapt- ess surface with constant speed. A person then applies a constant force to the North on the object. What is the resulting path th.jf: a.pgnto-3m nv ,mat the object takes? A. A straight line path partly Eastward, partly Northward

  07.15: Two identical mass oba,ci-fi2 :9 xw1wnw syjects are launched with the same speed from the same starting location. Object 1 is l,w-x n9yii 1 a2wfwsc:aunched 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 mass objects are launched with the sh uq-wa4dbg98efb a7 6ame speed from the same starting location. Object 1 is launebfhdgb 48aq a9 76u-wched 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 experiences the greatest change in the linear momentum?

  94.14: An arrow is abo cl:b ip 9 676zggvfsy98w;yimed horizontally, 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 was the initial 8p y:byig bfogz967wsv;lc9 6speed of the arrow?

  03.05: Two arrows areu(irvy.0;am7qw7 qjep)5 f2tldiq h7 launched at the same time with the same speed. A at an angle greater than 45 degrees, and arrow B at an angle less than 45 degrees. Both land at the same spot on the ground. Which arrow arrives e q)7wj2iiah70y7.umt(p q r5 lv;fqdfirst?

  95.19: A baseball is thrown horizontally from a cliff. At the saettl p6o; 16vrr+h.zr(t. e zmme instant, a bowling ball is dropped from the same height. Assuming air resistance can be ignored, whiclrt1przm+r t(;eho66. .v zte h of the following statements is correct?

  96.08: A ball is rolled off the edge of a horizontal a1 mp(mc(n sx) t601gabiir1w5fvun* table. The ball has an initial spein mgr1 0t1 ci5pas*6wua1nbvm(fx() ed $v_0$ 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 ukb1r1 w/w:bu vertically upward with an initial velocity v and an initial kinetic enw1wu/ 1bbuk:rergy $E_k$. 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 to :y1av2 la/ q:v bw2b 5dgj3livbe 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: dalbq2a1jgyw5 :l 32vvbvi/ 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 winter uv3c5j:n t-2 xtn ox11o( o+vjpn zv7tstorm, 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 on3czv(tox1tv+uoj1 :x7vjpnt o52-nf hay every two seconds. It is reasonable to assume that air resistance will be negligible for this situation. About how far apart from each other will the bales land on the ground?

  01.14: A football is kicked a distance of 50 yards down field. Neglecting umm*ijzh e.3r *.h8ki air resistance, which of the following statements would be INCh kzj.8imueih*3. rm*ORRECT when the football reaches its highest point.

  03.10: A ball is thrown into the air at an angle zj 0j r1l(uwq7$\theta$ 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 horizontally toward a target 20 m away. In traveling f 2j r 0xg9axmisg0q b(0u)w0soirst 50wg9(uxqgo )2ai0b sr s00jxmm horizontally, the arrow falls 0.2 m. In traveling the next 5 m horizontally it will fall a additional

  06.04: An arrow is shot from a bow at a+qhjx8 r 5vey )xa;7xdn 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 groud64ixs7+ lp2mff(cov7h6a4 jk oqkj0nd landed a horizontal distance of 120.0 m from its launch point. The projectile was in the6 lfkap2j iqf(740o7mdk4js v6+coxh 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 93t6m 9e( jrkm lsyux/is thrown 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 th j8 1x ryrocr*07ij9 lgj3jdu3uit sm7i*kq8.e top 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 un+h3skz1y5 v;rqm4ht iy.+b6o2q fu trajectory of an object thrown horizontally 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 accele5 ;uq f+s2rk 34yz n6iquhmyh+to.b1vration for the object at the point labeled P on the trajectory?

  02.41: A person throws a small object from the top of a bblldpf8 ob*+wh) na,6a+yu x43gc 3w puilding at an angle of bnw*a 8,lp36oblu4y g+ wpc+)d x h3fa$30^{\circ}$ 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 ground a47,d:w hkwmvsgw ;, r1rifc*jns6zv . t 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 iu h9m bl lvw*;-n, pjce7+p+kcs launched 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 horizontal is the object m m lkn+w ,9*;p+hpb7ujl cc-veoving when it reaches the ground? Ignore air resistance.

  17.32: A projectile exlp2:l 9wx4 xis launched at an angle of 40° above the horizontal with a speed of 30 m/s . How much time passes before the position of the projectile makes an angle of 20° above the horizonx9p: 4 wxel2xltal from the original launch point?

  14.40: A small 1.35-gram mass is launched from the top of a cliff at an-kf/dclz0* g7ayqhp,xsx0c 8 angle ofs ylpx7* /gq-0f,dha ckcx0 z8 $15.9^{\circ}$ 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)