07.14: An object moves to the East across a frictionltf+cc 6/gs(ns9 u,qdh:cs cdb98-hxzgnsd):ess surface with constant speed. A person then applies a constant force to the Nor ug (csncgzn6dthdx/99 s),bsf +sc h8-q ::dcth 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 objel68x2cax rc7r 2a6jzh cts are launched with the same speed from the same starting location. Object 1 is launched at an angle of lzjcaa 7x6 hr2 2xr6c8$30^{\circ}$ 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 samey 9he ah* 91drixi-v/z speed from the same sx-iy1/9hzv hre i9 d*atarting 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 horizontall 4:sj1;gok cfsy, directly at the center of a target 20 m away. The arrow hits :f1sjscg4k o ;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 launchb 1wonpk4cc):s7 vypbv/9, xned at the same time with the same speed. A at an angle greater than 45 degr,o 4 xbcp/)c1ynwbk vn7v :p9sees, 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 (4uev8 ik zxb/a cliff. At the same instant, a bowling ball is dru/ v84(ikxebzopped 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. Thehsb; ,3ldyj(t ball has an initial l(;std3yb h,j 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 k ie/(ql+ *rtad b/p2dupward with an initial velocity v and an initial kinetic e/b/p ladq*tr+2 id(kenergy $E_k$. 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 be4zpnmd,cmt4 t59rv p 8 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 to their distance ofcvp n5zpm ,r4 t4tm98d separation?

  00.38: During a recent winter storm, bales of hay had to be dropped fr :j5czx2/j.e9 ,p zggr-stbmtom 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 willg2tejc/-gt xrs:5 bp9.mjz, z be negligible for this situation. About how far apart from each other will the bales land on the ground?

  01.14: A football is kicknkxx0k7swj s92/: d2,zql iqaed a distance of 50 yards down field. Neglecting air resistance, whind2 wqlxk7i:s,xjzka92 sq/ 0 ch of the following statements would be INCORRECT when the football reaches its highest point.

  03.10: A ball is thrown into the air a gs(du (u ./ oasaq-v)e1dgw9lt 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 awdcd50c .(-iynrsi5 sa+bvt4 cay. In traveling first 5m horizontally, the arrow falls 0.2 m. In traveling the nextd05cnis +ccas4v.dbry(t5 i - 5 m horizontally it will fall a additional

  06.04: An arrow is shot from a bow at au6c k8i07twmds)too 5n 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 horizona8.zf en h)ej,.vm;w.vgl,r)q jjpw /tal distance of 120.0 m from its launch point. The projectile was in the air for a time of 4.00 seconds. If the pf vlg/n j j,.r ;.vm)pqeja)8he,w.zwrojectile 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 j*tr s19s-zjafd ta2p/ .pb-othrown 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 cliff with*y:2ghelq .2ra+ sjdi7qcjhol: ;m+k 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 horizontale6v8heyr1 d vsx+r*a jrd w u:p)b3s4ca--q- ily from the top of a building is shown as the dashed line in the figure. Which sets of arrows best correspond to the directe3ir-18bq cx- e*- w j) h vyrdassp+4d6vuar:ions 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 ob( 8oi62*jn ieagq1nsp ject from the top of a building at an angle of gqe s a21j 8*oi(6ninp$30^{\circ}$ 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 groun om1lbe*2qu;*bq 9zl- ni ;slf;adss,d 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 horizontal from a height of 1h;ze2c 76 s6 b5 hgi-kiegug1b0.0 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 ku61ci g265 esgh;-ebizg7 bh reaches the ground? Ignore air resistance.

  17.32: A projectile is launched ap aex(*8r3p3 n3ycmq vt 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 laun a ceyp pr38(*3q3vnmxch point?

  14.40: A small 1.35-gram mass is launched from the top of a cliff at an an b0q x )rifbzz1gt, 0mg3r6x3zgle of m1gbx fi0 z03z 3r rt6bqz,)xg$15.9^{\circ}$ 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)