07.14: An object movesudo3azo sv6fbb*ej(+7d /4hv to the East across a frictionless surface with constant speed. A person then applies a constant force to the North on the object. What iv vedbaj7o o6fs3z d(+bu4* /hs 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 speed gps g 7hp(6pu4 6r2ivifrom the same suvsigr2pg i6p4ph 76 (tarting 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 objects are launched with the same speed fros5xb838 ng:brc3yfhk er l6z:m the same starting location. Object 1 is launched at an angz8 nr3 sgyr l3:hkfb 8bex6:c5le 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 aimedfn;hf2p6* v:u7ka-1dm h q acqzs;fr5 horizontally, directly at the center of a target 20 m ah;k5f6 nq 2u1 ;m-vzaffa : phqdcr7s*way. The arrow hits 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 the same tu*ymw k1v d,t0ime with the same speed. A at an angle greater than 45 degrees, and arrow B at an angle 0*t1 uy dvmkw,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 mh8na 4j f, (k,e5tlycsame instant, a bowling ball is dropped from the same height. Assuming air resistance canhy,njmf tal5 c(4e ,k8 be ignored, which of the following statements is correct?

  96.08: A ball is rolled off the edge of a ho7w)(lo): 8 jq9s 0zkapqnf gcqrizontal table. The ball has an initial speed a cqwgk:0 )7fn)opqsz9jlq( 8$v_0$ 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 initia6ft lkxh 1jr,+l velocity v and an initia ,rlh6+x1 ktfjl 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, g4w3:kwn:hr 1zr ;8rek fpc*lbales 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 negligible for this situation. As the bales are falling throug*l3z rk;wfe rnpwc1 :r48kh:gh the air, what will happen to their distance of separation?

  00.38: During a recent winter storm, bales of hf ai:5d7qor0x ay 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 resfo7dri: qx5 0aistance 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)*woh 0n tymm5 50 yards down field. Neglecting air resistance, which of the following statements would be INCORRECT when the football reaches its highm mn5woh)ty0* est point.

  03.10: A ball is thrown into the airdybgi. g(lngl 8 +)ck1 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 *luqr.d 5cjfd8; j/jffirst 5m horizontally, the arrow falls 0.2 m. In traveling the next 5 m horizonr.c 8 jqljd/d5fu*fj;tally it will fall a additional

  06.04: An arrow is shot fro9rdq 82 q1mqzyj d37lxm 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 from the groun 5hx4wa3gevsu9 e uv*ej(8y x*d landed a horizontal distance of 120.0 m from its launch point. The projectile was in the air for a time of 4.00 syv(s9 xu v*8ege4uew5 *h3xjaeconds. 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 throwmof /q .mchk+0qq9(bq1sjs:dn 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 from the top of a-c4ieyfs y/ *9:xwnlx 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 hori3avz27tyue;uq2 bq*-jn*gl y zontally 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 object at the point labeled -u72eq zy;3 *n2vlajutg *yqb P on the trajectory?

  02.41: A person throws a small object from the top of a b6wgg6d)z qw/xhmm3 *suilding at an angle of wz)d h/6g6qmsgmw3* x$30^{\circ}$ 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 angyw ig h,w+hn9kr)q8* ile 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°e4s+t- ml 3n-p.*p boskt6f br above the horizontal from 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 the object moving when it reaches the ground? Ignore air re-3m s6ns4 o.p+eb f-t *pltrbksistance.

  17.32: A projectile is launched at an angle of 40° above the horizontal wzp65 jgxp+s; sith a speed of 30 m/s . How much time pa5js;gz6p+ xsp sses before 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 launched from the top of a cliff atg w1zic.e i56d an angle ofdi5.iw1 6ecz g $15.9^{\circ}$ 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)