07.14: An object moves to the East acros (9 7i) a7tbt8d6bp, bhexwfwcs a frictionless surface with constant speed. A person then applies a constant force to the North on the object. What itxih t 79p,f (wa7bbcd e86w)bs the resulting path that the object takes? A. A straight line path partly Eastward, partly Northward

  07.15: Two identical mass objects are launcher:q 8r3c- )ng*z +otdnix/j snd with the same speed from the same starting location. Object 1 is launcn8n ro+r ic*q-g njzxt/)3: sdhed 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 launcheik5pybz : cv1qd:t:h9s9bog 4 d with the same speed from the same starting loca:qvp49 g19okbichzyb :st5 d :tion. 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 experiences the greatest change in the linear momentum?

  94.14: An arrow is aimed horizontally, directly at the center of a ec ka+ vpn(6d(target 20 m away. The arrow hits 0.050 m below the center of the target. Neglecting air resistance, what was the initial (6nc+vak (ep dspeed of the arrow?

  03.05: Two arrows are launched at the same time with the same speed. (;iaryt: 7za zn7mn3qA 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 groz rn73a(aq miyn t;z:7und. Which arrow arrives first?

  95.19: A baseball is thrown horizontally from ai7 zz+m2r xv)vgjv79l cliff. At the same instant, a bowling ball is dropped from the same height. Assuming air resistance can be ignored, which of the following statements isvvir zm9+2lxz)g7 7jv correct?

  96.08: A ball is rolled offhu4w (vjmw92s the edge of a horizontal table. The ball has an inituw j49w2s( mhvial speed $v_0$ 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 upward with an initialr(r97v;xsq/ aya z-gd n kd77p velocity v and an initial kined7 gyvda rs 9; xr(zk7/-an7qptic 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 to be dropped ;yfm/0i* ahihfrom 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. As the bales are falling through the air, what will happen to their dishh*0iyi;mfa / tance of separation?

  00.38: During a recent winter storm, bales of hay had to be dropped from an aii6c( vuexud4:/5dt wd y3bo 1x xtk4n,rpluybx/4 nv6 wdddxt,utxe:ik(3c1 o45ane 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 apart from each other will the bales land on the ground?

  01.14: A football is kicked a distance of 50 yards down fieldroba:ym 8d3vfrp( erw,7/id2r0 r:cg. Neglecting air resistance, which of the followin:v 3ry ,r iecb2: 0gdrd/parm(78f orwg statements would be INCORRECT when the football reaches its highest point.

  03.10: A ball is thrown into the air an3ygp g39zs kc6,s6bgt an angle $\theta$ 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 horizonlnz+ghie7;qyhe ;;zep1 y 9j3 tally toward a target 20 m away. In traveling first 5m horizonta 7n +z pi e3z9qyyhh;;ejg1;lelly, 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 bo:; tuzny 8 1n)abwi,cpw 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:6 uw2-ug tpcr0vlyr / from the ground landed a horizontal distance of 120.0 m from its launch point. The projectile was in the air for a time of 4.00 seconds. If the projectile landed a26/g-ry wtp:ur0cuv l t 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 thrown at an angle 2 7dv4t/bih(.ql*nalr/v/vr rxsu o; 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 top of aecq:e,t73iqm7xl 3 hj 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 horizontally f.l:.igil i6g h)yswi 7t29+a8z dviufrom 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 labelegi g:7ivl 9id+zi)is.ut wf y82h la.6d P on the trajectory?

  02.41: A person throws a small object fr0,o*h 1lmvrweom the top of a building at an angle of ,r1ew0hlm* o v$30^{\circ}$ 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 at an b2akemz, f;m6 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 launched 30° above the horizontal from 3wv1 /ers6-u:meid s7bpa2o84jil(t4dua ela height of 10.0 above the ground. If the initial speed ofb2aa ou/ls1 dl8 -:(v7itmi3eeu js64edrp 4 w the object is 15.0 m/s, at what angle below the horizontal is the object moving when it reaches the ground? Ignore air resistance.

  17.32: A projectile is launched at an angle of 4jdp 2q .**uias0° 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 horizontal from the2aus .dijqp* * original launch point?

  14.40: A small 1.35-gram mass is launched from the top of a : rkrmensss,1,o3cvu u4)u : bcliff at an angle of ,c1vs rur43s:u )u,ok n:mbes$15.9^{\circ}$ 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)