07.14: An object moves to the East across a frictionless surfq:(6r,d8k kj lvv:uqeace with constant speed. A person then applies a constant 8v:jrqlk,uq(kd v6 e: 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 with - q1:l3yksjg bthe same speed from the same starting location. Object 1lqjs3:-gkyb 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 f; dmbgui+ **blaunched with the same speed from the same starting location. Object 1 is l+ibm *fbu gd*;aunched 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 horizontalllz/mu lj + ura)khr3:zu1l 7-jy, directly at the center of a target 20 m away. The arrow hits 0.050 m below the center of the target. Neglecting ai:ul zlrkjj) +7ul-/ 1mzu3h arr resistance, what was the initial speed of the arrow?

  03.05: Two arrows are launched at7z+cugyh.3 v oz+ w.vk)w 0gfn the same time with the same speed. A at an angle greater than 45 degrees, and arrow B at an angle less tha v.+zv0 khzg.c 3w)7fyog+wu nn 45 degrees. Both land at the same spot on the ground. Which arrow arrives first?

  95.19: A baseball is thrown horizontally from a clahrw r/5)hy c4iff. At the same instant, a bowling ball is dropped from the same height. Assuming air resistance can be ignored, which of the following star/ ahy5w 4rhc)tements is correct?

  96.08: A ball is rolled off the edge of a horizontalxegq*utgu-*an. wnu nhrh53(/hw5 7i table. The ball has an initial gwq. */ -u5 7hng5n n*u3uh warhi(xtespeed $v_0$ 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 ani:,3 n rmwpr2*dgcwc(d an init gcr :icw,npwd rm*(32ial 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, balesl48z g9.c*w bb c2wlux 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 through the air, what will happen l g8x49bw ul.czb2* cwto their distance of separation?

  00.38: During a recent winter storm, bales qm9 oj:+jc z*jdzso. ;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. About how far apart jzd ojm q c:j+s*oz;9.from each other will the bales land on the ground?

  01.14: A football is kicked a distance of 50 yards down field. Neglecting jkz)u*+o+e/8ch z off air resistance, which of the following statements would be INCORRECT when the football reaches its higk uj+ *ofzfo8ce/)+z hhest point.

  03.10: A ball is thrown into t) 7 pr fnpi.6fi.wlcc(he 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. In travelink voodd21hh 62 3zsvxg8-z2lu g first 5m horizontally, the arrow falls l26svz o2 dh8k12gu-h doxz3v 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 an an;9ar9ooa tr .rgle 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 horizontal distance ofzd*18y9 nkr8r-sznqt9 7,1gug dqvbd(po )bk 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 wasr v,tbqrdq9z k 8(7g9n s*d nbd1-zo8g1 uyp)k launched, what was the launch speed of the projectile? Ignore air resistance.

  13.14: A small ball is thrown at z+3hm:;jr-9 d eaysg y7wap, oan 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 launcc slvs ;/7se-whed from 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 thrown horizonq*3mkyykow9o4f (x is.0kj c/tally from the top of a building is shown*4o.3 cmoq9k0kkf(w xj /si yy 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 object from the top of a building atg-7f wjlm2wq4 7 8twot an angle of qwm8t 7l-joww 4tfg72$30^{\circ}$ 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 launchewm0le drgz yd6j:wu spq-bfh6j32 14;d from the 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 snfa4 (, 0(ybn+zx 4t4nmfjpzhorizontal from a height of 10.0 above themzfts 0p,njf 4x(bn+(4zayn4 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 resistance.

  17.32: A projectile is lamhg23sp8c f2+jokpr7unched at an angle of 40° above the horizontal with a speed of 30 m/s . How much time paso3 p2k8fj s hr27pgm+cses 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 at an a l+qi /5 wxekqvis536xngle ofe6/ vqxii 3skl5x+qw5 $15.9^{\circ}$ 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)