07.14: An object moves to v54mqj9 4vhm5 jso dr1the East across a frictionless surface with constant speed. A person then applies a constant force to the North on the object. What is the res5ohrj q 4v1vmjsd 9m45ulting path that the object takes? A. A straight line path partly Eastward, partly Northward

  07.15: Two identical mass obje vd*xt(si:im+u 7qjn 22g)skl cts are launched with the same speed from the same starting locakjgsil*u(it2 :n7 2dsxv+q) mtion. 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 objects are pg;h ;qz pn39jxs+a;+ac l*ntlaunched with the same speed from the same starting locxatn 3zh;laj+cn; g;*pqsp+ 9ation. 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 centev,d3p nts:+ m0(i-vj qx )m 9sxdy:qx0ci. vblr of a target 20 m away. The arrow hits 0.050 m below the center of the p 93( sy:),vvi 0l: dv+qdm.si-c xj nxmbq0xttarget. Neglecting air resistance, what was the initial speed of the arrow?

  03.05: Two arrows are launched at the same time with the same sps7su 8r 7vq-l/ sfwwv-eed. 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. r s7vl7fu q/w-8vs-swWhich arrow arrives first?

  95.19: A baseball is thrown ho8q+f :1lfu l2dz 9te+1n7po yj djcqf;rizontally from a cliff. At the same instant, a bowling ball is duffzfj 19tqq +1l;con+yd8 e2lj7:pdropped from the same height. Assuming air resistance can be ignored, which of the following statements is correct?

  96.08: A ball is rolled off the edge of a horizontal table. The ball epdzlrwz e 8i/;):i )chas an initial spez;p:iw))e /ldri8ze c 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 thrownt:pgennf0emv 76dx 6 5o4 5qac vertically upward with an initial velocity v and an initial kine ntfv75qm pg6ae5:46 do 0exnctic 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 r wm07 mxcx e70ak-)rc- /pwsifrom an airplane to a herd of cattle be 7ck ime7c 0)wp -mx-rx0arws/low. 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 distance of separation?

  00.38: During a recent winter storm, bales( qsz+1)zw(oo+qi 02qhm mg xx of hay had to be dropped from an airplane to a herd of cattle below. Assume thqz)12 (ix q+zos+wqm 0og m(hxe 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 field.8waqke72x-.h 4ob g3v-gdfoh Neglecting air resistance, which of the following statements would be INCORRECT when the football reaches its highest poinvwf3.d2-x4g7 gaqhbo-k oeh 8t.

  03.10: A ball is thrown3i;wd sjdmb4 lt3 o(/i into the 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 shot horizontally toward a target 20 m away. In traveling fi t0h5:ndjpqr0 rst 5m horizontally, the arrow falls 0.2 m. In traveling th0rn0d 5p:thqj e next 5 m horizontally it will fall a additional

  06.04: An arrow is shot from a bow at an angle of /:qxy fui;etg93 pq)w $40^{\circ}$ 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 +5robjs ,t 0gihorizontal distance of 120.0 m from its launch point. The projectile wo,+bs igrj5t0 as 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 qlm1 anr0d+5ce zcx44hvb/vkvt +m*;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 e6 vtz6fzao l;jq;dc)jf )0, qis launched 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 horizoic3qthgd 274krtr( k .ntally from the top of a building is shown as the 7rkct342qt i(gr. hkddashed 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 on the trajectory?

  02.41: A person throws a small object from the top of a building at an angle 4 8y12 pdxzrnoof z48x2ryo pn d1$30^{\circ}$ 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 grzu isd+7 c3xhhhm)04vound 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 from o-mhqd)w2a 5w0c chy+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 hoh -ow 0wm)+2q5y cchadrizontal 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 horizontalf9l;h 9lrr a,h with a speed of 30 m/s . How much time passes before the position of the projectile makes an angle h9l;rflra , h9of 20° above the horizontal from the original launch point?

  14.40: A small 1.35-gram mass is launchewa d-y,t:sacpl, ., jad from the top of a cliff at an angle of tl,d,a- .:wj ypas,ac$15.9^{\circ}$ 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)