07.14: An object moves to the East across a im(e 23rs*srm frictionless surface with constant speed. A person then appliei srm sme2r*3(s 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)jz 5dlrf0xkea+ ,*uo us736ihuf az, objects are launched with the same speed from the same starting location. Object 1 is launched)zf ua3x07h *if +keraul,5zsjo6u,d 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 samec5tmbskb ;3:h speed from the samecb ;thkbms3:5 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 experiences the greatest change in the linear momentum?

  94.14: An arrow is aimed horizontally, directly at the q0x(rn9* vh cpnw-ugnlp0;cl6lyl-,center of a target 20 m away. The arrow hits 0.050 m below the center of the target. Neglecting air resistance, what was the initial (9lr0pgnyl c--pxuqw 6cv; lnn*0l h,speed of the arrow?

  03.05: Two arrows are launchd;z m.:l4a(udi1xezg ed at the same time with the same speed. A at an angle greater than 45 degreegdm 4uza 1l.x:ie d;z(s, 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 wnp2r ,8-a5h;f; ryq;i nupbb from a cliff. At the same instant, a bowling balah;yp5-p,b ;i; brfqnr wn28 ul is dropped 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 has anf d(fl*/ad .lc omm 8tah.cp4u3x;e 9r initial speedupecdmt .;x4hr/3 ( om 9a flafcld*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 initial velocity v and an init3ir 4x5fkrdd9 p-o(qb ial kinetiok qp f xdr3bi(rd5-94c 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, balt1)3tvlm) fyu2.rk;qydk3 d fes 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 fallin.ykvfqdut)33 ;m 2f yr)lk1dtg through the air, what will happen to their distance of separation?

  00.38: During a recent winter storm, bales of hay had t+em92 g 5prygmo be dropped from an airplane to a herd of cattle below. Assume the airplane flew horizontally at an altitude pg9m r g+y5em2of 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. Neglectinobvf8i1vw 4r9: zohs/g)cjb( g air resistance, which of the following statements would be INbrw 8)viob9o1(ghcs:4f vz j/ CORRECT when the football reaches its highest point.

  03.10: A ball is thrown into the air at an angleckzt)qdvsb jkn / .tnirnx )(m0v;+91 $\theta$ 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 horizon(m9aj7 tww e2kcu/ h:s;qu/ontally toward a target 20 m away. In traveling first 5m horizontally, the arrow falls 0.2 m. In traveling the next 5 m horizontally it willukc/ oh2(m/t:uw j7nse waq; 9 fall a additional

  06.04: An arrow is shot from a bow at an angl6+nvbw 0op5 llr* ccqu:;fc:j)zv f7d e 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 landedzqd.0s1 jp z)v 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 landed at the same verj.) 1z0 qdspzvtical 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 o69j)) rlt.ile,3s cnqf e1akm f $30.0^{\circ}$ 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 -gr/y wig p;azf;dj01nbp;vl w0l--b 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 horizontally fr.ao:q*u tqhv;r 80ti)6bhlcz 8h. xqa om the top of a building is t.8 l8h0quc :thrhix6qqz va*a)b.;o 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 P on the trajectory?

  02.41: A person throws a small objeco 8, vlg(vda*ft from the top of a building at an angle of (aovg dlf ,*8v$30^{\circ}$ 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 l9gf+l-o ym:u ava*w1 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 a heightx (z yhp8z+zgnq*6v0n)ipir7 of 10.0 above the ground. If the initial speed ofn*z7r6i(zny pvq0hp8+) izx g the 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 horizontalf-xda(8 ,m aye 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 om (8ya- ,efadxriginal launch point?

  14.40: A small 1.35-gram mass is lau/1fu6j qv fh:p58h5 uwsw q*7 vypvdj9kl+x+unched from the top of a cliff at an angle of+p9vjjy fuvhdlpq/ s57*1+ whwuk :q8vu6fx5 $15.9^{\circ}$ 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)