07.14: An object moves to the East across a f/zzvof;e3 4j od -*zm sdgnv,:rictionless surface with constant speed. A person then applies a constant forcezm;vd -f v e3*z4doog:, nszj/ 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 are launched with the same speei 3( qt+a(l.zn7jia6he +ax qjd from the same staj x +e aajnq+aqzil(7h3t (i6.rting 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 mass obje1 ,ush yioeddog co*(22; axv8nhb;d5cts are launched with the same speed from the same starting location. Ob1cu 2d5i 2,daho;esoo ;ynb8x g*d(v hject 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 atd-f o r3e1on/p10 qu9hh dddp-r-m(km the center of a target 20 m away. The arrow hits 0.050 m below the center of the targetpdm hh fe/ m1 (o3-ur9 -dkd0nqo1r-pd. Neglecting air resistance, what was the initial speed of the arrow?

  03.05: Two arrows are launched at the same time with the same speed. A at an ol hdq,-.t n36*eovhpangle -.3lhvtp6 nd ,* eohoqgreater 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 first?

  95.19: A baseball is thrown horizontally from a cliff. At the same iv 0wg3veo:g3j nstant, a bowling ball is dropped from the same height. Assuming air resistance can be ignored, which of the following statements isg:3v3jgw oe0v correct?

  96.08: A ball is rolled off the .c6 8x8c:tf)wpizod oedge of a horizontal table. The ball has an initial spe:6do8wco zctpx)fi 8.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 vertically upward with an initial veleer -rtdgpm6 :w5:m g/ue p.q.ocity v and an initial kinetic :g 5e-grqer/:u6twmm .edpp.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 fn*-2+8xv ap lsi3 jwxmr)f h)orom 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 thx)8 lspj)-*iwn +2rx f vaohm3eir distance of separation?

  00.38: During a recent winter storm, bales of hay had to be dropped from h7eim:dl /sz3bz 0we5an 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 ti70/ws:lhm zebd3 e5 zhat 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. Neglectingsvo;:n0hb1 zos3n/*8 )eg rv3win mdj air resistance, whichze0w g /s8o nv*)v3 i;jbom13:hnnsdr of the following statements would be INCORRECT when the football reaches its highest point.

  03.10: A ball is thrown into t 2p5o 9dt:9t,cclel b(dx ymw3 oy,j*ihe air at 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 sh -uct ;wh9my8e7)s0 qu bxx4/j*rdrraot horizontally toward a target 20 m away. In traveling first 5m horizontally, the arrow falls 0.2 m. In trave0-*twm e/r7xxdjr9;a c yrsbu8)4q hu ling the next 5 m horizontally it will fall a additional

  06.04: An arrow is shot from agf (- dj *hw*zijffe,: bow 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 horizontal di0sf/6 xdzt4 mestance 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 at the same vertical position from which it was launched, what was the launch speed of the projectile? Ignore air r/zxf40d6 se tmesistance.

  13.14: A small ball is thrown at an f+rzutces6 d qa/k)-. 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 launche6.p82rpk g m a0mvgm5qd from the 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 trajectory of an object thrown horizontally froae(zalc n :w)ys. :.jcih94uwm 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 nw u. ilajaysecc9:w4z().h: the object at the point labeled P on the trajectory?

  02.41: A person throws a small object from theq-tx s2-nvo,x top of a building at an angle of v--o qnt2sxx,$30^{\circ}$ 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 j6,t h)n*piu3zgx3jf ground 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 launched 30° above the horizontal f ;ic/ +ex 2sv6yfdek1rrom a height of 10.0 above the ground. If the initial speed of the object is 15.0 m/s, at w;cyif 6 xdv21es+rk /ehat 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 48e;s27dd u 6b* hntv) uc-bspg0° 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 horizon2; p heu7cdb- tu gv8d6*s)bnstal from the original launch point?

  14.40: A small 1.35-gram mass is launched from the top of a cliff at an afpwo:)8y y 2uq56rmb t)zxw 9angle ofy 8)ya)wz pb om56 rt9fxw:u2q $15.9^{\circ}$ 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)