07.14: An object moves to the East across a frictionless surplkgytl5f72k gcfi/ 8 ,5tsq) lom1e (face with constant speed. A person then applies a constant force to the North on the object. What is the resulting path that the object takes? A. A straight lf m )ylgkfoi lg7e5s2t5pk ,q81/(ctline path partly Eastward, partly Northward

  07.15: Two identical mass objects aldojoo :k936;3nrz a :7b knye br2n:mre launched with the same speed from the same starting location. Object 1 is la3;o7 9o2b k a::zdn j6orlek:nn 3yrmbunched 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 tmbpb9f iw;)r* he same speed from the same starting location. Object 1 irw ;9*bfp )bmis 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 ar,p.gjgf7 5 ufgp-x9aimed 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 resis .gf,-x5jupp 9fggar7tance, what was the initial speed of the arrow?

  03.05: Two arrows are launched at the gx, 9ugu 9i -ucozgf;p1)bck)same time with the same speed. A at an angle greaupbg )go xczi,k;g u u-)91fc9ter 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 oqu q0ky29f7 prop 5s)cliff. At the same instant, a bowling ball is dropped from the same height. Assuming air resistance can bsoqoy59) 7p fp 20rquke ignored, which of the following statements is correct?

  96.08: A ball is rolled off thei: wtu -0.r (gjqnw 7gvzf*7nr edge of a horizontal table. The ball has an initial speedf*r j(gzrnq7 7wu-wt:v.ig0 n $v_0$ 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 velocity v and a2 b7srpnu by8)x7xd3 an init87 dn s7ab)3b ux2yxprial 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 hab,lwzqds+1v 1kzdi5l-; k2b d y 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 conkiv,dw2s;1d1 b dllk- q b5+zzstant 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 of hay had tfgv+l fxo9(f6 o 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 apart from each other will the bales 6vgflff+9 xo( land on the ground?

  01.14: A football is kicked a distance of 50 yards down field. Neglecting air ro6ujx.lj,oht1rol*(g2 e(y c esistance, which of the following statements would be INCORRECT when the football reaches its highest p 1,ljt ghjc(2xoe .lour (*yo6oint.

  03.10: A ball is thrown into the 1m9 0qe1-p,dgrut udkair 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 ay8 , pjvbt)vud.nb3w 6way. In traveling first 5m horizontally, the arrow falls 0.2 m. In traveling the next 5 m horizontally it will fall a additionalt,b d36vv8wu.bnp)j y

  06.04: An arrow is shot fz 5o+g 1p li(hgsrz:3grom a 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 fro+hfq /7wsh38n za3squwso0g(z5 vu3em 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 land3gsw eu8 ( wssh3075auq3 qhzn/ zv+ofed 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 thrown at an angle ofp2hk1j1qih.i* su 0 ldev -5lw $30.0^{\circ}$ 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 a cm(e f1x hh6o:ny c6p5,h 2h hrk0xtno2liff 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 +o5 l txlkq430yoxar 18e1gy vgsq2 6eobject 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 acceleration for the objeqgt13+r8 14 xxsv 6yk l ayoqol02eg5ect at the point labeled P on the trajectory?

  02.41: A person throws a small object from t (v-l0 fzcx2qbpl:/ lohe top of a building at an angle of v-2 zp:lxf0o qbl(/cl $30^{\circ}$ 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 w 7.agyjyx0ij*f -t8/+ x zbluground 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 fro .3i+lmzl1ay7nv 6fth6z dxisn q(. -xm a height of 10.0 above the ground. If the initial speed of (i az3ft7d6h+nqmly 6sxn 1 xiv.l.-zthe 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 40° above the horih;h3+:qm elklzontal with a speed of 30 m/s . How much time passes bef+h ;mllqeh k3:ore 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 lauydn5 ,zt,w6vh1oxvyoj80y q6nched from the top of a cliff at an angle ofz 1h,dvwv oy0q5x6n y8o jy,6t $15.9^{\circ}$ 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)