07.14: An object moves tov : na8r0jy3bs the East across a frictionless surface 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 str:j 8bns0ar y3vaight line path partly Eastward, partly Northward

  07.15: Two identical mass objects are launched with thefqx/:yzi - u l*u*)2azdpbs m: same speed from the same starting locati mfb zsdi qylx:u2z*/u*)p -a:on. 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 la1fqqf8)lylq ; if:yq78 knk(junched with the same speed from the same starting lkq)yl:if8 ffq(;kjqlq 8 7 1ynocation. 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 4 sp3gbs 6s,ithorizontally, directly at the center of a target 20 m away. The arrow hi3g6ts,pbsi 4 sts 0.050 m below the center of the target. Neglecting air resistance, what was the initial speed of the arrow?

  03.05: Two arrows are launched at 9x e64xxort d ujcv,9p54bf4e the same time with the same speed. A at an angle greater than ,4 jx v6te4drop95exx9fu4c b 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.t3s4h 7 3rmkpo At the same instant, a bowling ball is dropped from the same height. Assuming air resistance 7sr43tkh po3mcan be ignored, which of the following statements is correct?

  96.08: A ball is rolled off the edge of a horizontal table. The ball has an iffx qlv)aa. m5,r28h;w:m l9ctft0gk nitiftav 9hmk,x.2l;mq8gt) 0 rfl fwac 5:al 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 initial veloca: grlr(- ,vfh8ia xo3ity v and an initial kig ,-hxrf rla3(8vo:ainetic 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 pnj2d ): u5eghdropped 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. As the bales are falling through the air, what will happen to their distance of sepgp2d)j :u enh5aration?

  00.38: During a recent winter storm, bpl)+s)dnb eq :ales 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 of hay every two seconds. It is reasonable to assume that air resistance will be nege +):bpdn)ql sligible for this situation. About how far apart from each other will the bales land on the ground?

  01.14: A football is kicked a dista+ b c2o/m;gk.afrb b,d6bh y 0vc7els.nce of 50 yards down field. Neglecting air resistance, which of the following statements would be INCORRECT when the football reaches its k2 ygbdb, ;rc0eo/ .mfb6+vl7ach. sbhighest point.

  03.10: A ball is thrown inymjn odc + ansh(q/+mon*,1 0uto 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 j)s7zaf+h0 npoiju21. In traveling first 5m horizontally, the arrow falls 0.2 m. In traveling the next 5 m ho+0)znpf7 ai2ujo1h jsrizontally it will fall a additional

  06.04: An arrow is shot fromn r0jpb. r:0kv 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(lix j f2m13s hd r3/5 31(pofnb uktzop9sn,tm 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 s 9 s2 fj 1d5ploupoi/ x tzr(fsknm,btn33h3(1econds. 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 thaqsg zf72p)r* (r4ks(kna-on rown 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 fr/3awccf gg ::kom 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 t)l x ucx2g (mw4h)6sjihrown 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 velo2 hu(6x)j lx4wigm) sccity and of the acceleration for the object at the point labeled P on the trajectory?

  02.41: A person throws a small object from t wrj-by7 p1q)dz qh1*d-4 0ckjd 1ztkmhe top of a building at an angle of 1 qtzq h7)0w c djp4k-j1y-dk*bz 1rmd$30^{\circ}$ 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 -, eqiru778qmk)lea ethe 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 froera k 5pijn,z67bx12a ,z.q+pbu /ey bm 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 y,z1+72prepx b .5/ibjak,qzben6au the object moving when it reaches the ground? Ignore air resistance.

  17.32: A projectile is launchdbqv+ uy 6m2-mpf1a+r: a* uvhed 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 horizontal from the original launch pointbad-v1fm+v+h*:pam ruq6yu2 ?

  14.40: A small 1.35-gram mass is launched fk5/occoh 5w )1o6blkw rom the top of a cliff at an angle of lo6o5cbkckw)ho/ 5w 1 $15.9^{\circ}$ 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)