07.14: An object moves to thw,z h,s;-vr(lp ulz* oe East across a frictionless surface with constant spv*zu-;h,l p(z,ro swleed. 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 line path partly Eastward, partly Northward

  07.15: Two identical mass objects are launched withz u fe).ykv,o8 the same speed from the same ,o k yvu8.zef)starting 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 witn i9p, z*2fsfqrs+7uph the same speed from the same starting location. Object 1 is2 riznpf7+f9s*q,pu s 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,, x b -d)n b2)ysqnk(g1ctm7bk directly at the center of a target 20 m away. The arrow hits 0.050 m below the center of the target. Neglecting air resistance, what t2- )k (csndqn,kgybbxb 7m)1was the initial speed of the arrow?

  03.05: Two arrows are launched at the2et bt f9vbqr4a72 f4n same time with the same speed. A at an angle gr4n fa24 tbve972tbrqfeater 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 cj;jclydi+qt /09c9e7c 1veqnliff. At the same instant, a bowling ball is dropped from the vq cnc/lq0c7 etd99ej1+ j; yisame height. Assuming air resistance can be ignored, which of the following statements is correct?

  96.08: A ball is rolled off the q/fa 9a *oup99a))ma vvlw6 wredge of a horizontal table. The ball has an initial spearaa fv/p )q9lwmo96 *awv9)u 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 ver2t dz)51yz;a sow di8mtically upward with an initial velocity v and an initial t;iz5ys wz81md)oa 2 dkinetic 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 dro)uwk 1/fu tt6 3 co6psa+f+wfbpped 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 resistan+/cs6a3f)uot6wftuw1 f +pk bce 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 to be drnyqj),4u hv,i gt*h,nopped 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 droppedhu ,*4 n,thq)gv ,jyni 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. Neglecti 29s de5bxxi -p04fmrs /bzlu+7fg;jw ng air resistance, which of the following statements would be INCORRECT when the footbamgze+ r/ f47iw bj2 xs5-b0u9ps;xfl dll reaches its highest point.

  03.10: A ball is thrown into the air at an angl(btrt: u+7 :yygsyq )je $\theta$ 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 nt.fost 453x- iht-h)ersju / target 20 m away. In traveling first 5m horizontally, tj5/sfx) heus.hn- tio4-t3r the arrow falls 0.2 m. In traveling the next 5 m horizontally it will fall a additional

  06.04: An arrow is shot from a bow 7clj9z)az 3hy 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 horizoveh(iv.vfy+.a q19 cgntal 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 landed at the same vertical position from which it was launched, whath9(v.i ave vf 1g.+cyq was the launch speed of the projectile? Ignore air resistance.

  13.14: A small ball is thrownj7wgny zu2o5 3 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 cl.cwcen7hz ()yfs l s v.);yo4fiff 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 from the ts*fyqqrx lef 8 t32 59x9du4qtop of a building is shown as the dashed line in the figure. Which sets of arrows best correspond to the direcyet 3 lq*5rx tqfq9fu xs982d4tions 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 st)l1e3jq3 pt5 iaev.at an angle of 3i3t1j esatql.5v e)p$30^{\circ}$ 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 o, ehedy/qjzuou;8x 4:: p 6avm z5dr*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 hornh* hpmzko ixbr) 3--b9 y849uud/ pzwizontal 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 movib p*zx39pnuko/b-y)4dhrhzi 8- w u m9ng when it reaches the ground? Ignore air resistance.

  17.32: A projectile hnv)-r c5vjdikrl 1e 5c (.z0lvka.a- is launched 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 laue5v0akkij)d(cl-r r-. z1hc l 5avv.n nch point?

  14.40: A small 1.35-gram mass is launched from the b iu4j7nsq ck293 rs,si1w5wbgfa 3y(top of a cliff at an angle of i9w sqi(3a3y1 cu7w45n rb2,sbsj fgk $15.9^{\circ}$ 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)