07.14: An object moves to the East across a frictionless surface with constant s*,pzwv(8ms2mxti g g4 peed. A person then applies a constant force to the North on the object. What is the resx8(,g vw4itmzms 2g p*ulting path that the object takes? A. A straight line path partly Eastward, partly Northward

  07.15: Two identical ma)axhw0 t813oohu npl-- vrv5 jss objects are launched with the same speed from the same-a ht o3l15 xj8-0uvph nrvow) 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 lrzh+vthvq)r-d .ifh+. z kq88aunched with the same speed from the same starting location. Object 1 is la i.vk.8qhzr-++t fh)r zqv 8hdunched 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 horizong8 zc3 cg y)ky/us*j1atally, 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 was ty sk/) 8a*z1g gj3cycuhe initial speed of the arrow?

  03.05: Two arrows are launched at the same time fo e;4;yidw+ -wbt/ot jm8v /dwith the same speed. A at an angle greater than 45 degrees, and arrow B at an angle less than 45 degrees. y8tf+wmd/e;d 4joio b/ -v; wtBoth land at the same spot on the ground. Which arrow arrives first?

  95.19: A baseball is thrown horizontally from a cliff. At the same instant, a l;3a3qnf( zuc3cdz 6r bowling ball is dropped from the same height. Assuming air resistance can be ignored, which of the following statementsz3c;czn3 l 3aqf du6r( is correct?

  96.08: A ball is rolled off the edge of a horizontal table. The ball has an 4k+vwp(i +e 7u+zplqyinitial u+ kq+pi7zwyl+p ev4( 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 initiax:3) i co(cyqcl velocity v and an initial kinet 3: cx)c(cqoiyic 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 wintert9bi ayppp+v- aq-zs s;(-+c.l d1xke storm, bales 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 resis-1 ava p-s+.q -9kpl sx yd+tz(ep;icbtance 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:kksl6a x1wrs8iho : 4, bales of hay had to be dropped from an airplane to a herd of cattle bes46 :lihs8k x:aw1k orlow. 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 land on the ground?

  01.14: A football is kicked a distance of 50 yards down field. Neglectjiiyf3//cd japf+;l ( ing air resistance, which of the following statements would be INCORRECT ic 3j (/i;jp/f +ydaflwhen the football reaches its highest point.

  03.10: A ball is thrown iw:r8)ktr+rvm. 1f aa o/jacc 0nto 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 xgjjcf*y;+bupx2 rj1aw/g 2/ m away. In traveling first 5m horizontally, 2ax/xy gpf12+*gwu/ ;jjjcrbthe 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 at 3zo-m(s nc.ob 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 horizpt9c ro33ho s.9k np,pontal distance of 120.0 m from its launch point. The projectile was in the air for a time of 4.00 seconds. If the projtnc so9r3.39pkop,ph ectile 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 thrown at an n3zxbk4pst 10,b, 7ho)kin i ib90 mqiangle 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 cliff xo+ik41 y;v,t7 j nkopwith 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 falllzw :fsii7.t3e i5 rn6 trajectory of an object thrown horizontally from the top of a building is shown as the dashed line in the figure. Which sets of arrows best corresporief6li ti5w:s.3z7 nnd 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 object from the top of a buildh n-6 bviigxwiwybxz9: /:/p9ing at an angle of h ybx9i-6v :iwxg9/bwp:iz n/$30^{\circ}$ 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 ; e;ve67sngqqjgv,g;d xa/)dthe 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 heb voh29)*tiv7i .yclorizontal 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 ti7) *9vyic2hbleov. when it reaches the ground? Ignore air resistance.

  17.32: A projectile is launched at an angle of 40° above the horizoni/j*u :3.sdz3u a 2,pydybt+uy/ vtyetal with a speed of 30 m/s . How much time passes before the position of the projectile makes an angle of 20° above the horizonyyd3udut.y //y2 u*b+a3 z,i sjte :pvtal from the original launch point?

  14.40: A small 1.35-gram mass is launched from the top of a clif /x h3jauio4s:f at an angle of: xa3 j/i4hsuo $15.9^{\circ}$ 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)