07.14: An object moves to the East pb 8vvr 8ldi0*across a frictionless surface with constant speed iv*p0b v8r8ld. 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 7vizkp+n83 dd8vuwawt3)w 3f are launched with the same speed from the same starting location. Object 1 is launched at an angle 8)p7 zn3aitwf d3v3w+ku8wv dof $30^{\circ}$ 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 same speed from the sam 14bcjr:.v98 g:bm+byd coauf e starting location. Object 1 is launched at an angvj4:9oa cc.u1fyd 8+mbg:r bb le 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 theoc6uw-45pzqo2srkqwt7 n /0 s center of a target 20 m away. The arrow hits 0q2cs6wurn 4kts p-/w o5oz q70.050 m below the center of the target. Neglecting air resistance, what was the initial speed of the arrow?

  03.05: Two arrows are launched at the same time with th1d ou9yh -0zq,cm oa ,s/aaq5cg/ex5te same speed. A at an angle greater than 45 degrees, and arrow B at an angle less than 45 degreesxgz5m ,c5yeo0/ td qha u1-/aq9,asco . Both land at the same spot on the ground. Which arrow arrives first?

  95.19: A baseball is thrown horizontally from dd.g9jqcg0u + a cliff. At the same instant, a bog+g9ucdd0 q.j wling ball 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 ofd/ilk0 8mxtn ; a horizontal table. The ball has an initial spe0xklndm 8t/;i 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 vertically upward with an initial xgwx y0w3 bzcf;l8 912nom:hf b nt/f*velocity v and an initial kinetic1:glbx2f9nc;b8x t z*fmhyw0f 3o/wn 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 drpv rd dk6l;a; 59l:kxgmdf/8popped 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 to5lp6;dd am;l dxr8fv :/9gpkk their distance of separation?

  00.38: During a recent winter storm, bales of hay had to be dropped wbrfoktcm r-r:m*, 0n8ib(7c from an airplane to a herd of cattle below. Assume the aicmbob-(r 8f:rkr0 n*ct7,wimrplane 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 yardsh -3jo4bq)b ip down field. Neglecting air resistance,3 4joqbbh) i-p which of the following statements would be INCORRECT when the football reaches its highest point.

  03.10: A ball is thr ,;b;0u xow(oyrh iav,own into 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 horizontallhbhj , 5b7xn5ry toward a target 20 m away. In traveling first 5m horizontally, th7jrnx,hb5 5h be 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 atqik;)3(n 6sgr3ft lwg 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 horizonif c (l5xw4;gwtal distance of 120.0 m from its launch point. The projectile4fwg w( l5xc;i 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, what was the launch speed of the projectile? Ignore air resistance.

  13.14: A small ball is thrown at an angle *a g +5 ryj;tljwm3(8mv8t mivof $30.0^{\circ}$ 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 launchedxq22 r b-isy*u 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 andpxrv 7h6dmg4c em 2z.1 r,fd7 object thrown horizontally from the top of a building is shown as the dashed line in the figure. Which sets of arrows best correspond to the directi,v7f mhcdxr 2dgd6mp4.z1 er7 ons 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 thezwv*c+qb vo+g,7a y, q top of a building at an angle of +y +voqwva* c,,b7qgz$30^{\circ}$ 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 angle : t8k8oxdvam-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 al6 d vt .rsqx(f//,ryis launched 30° above the horizontal 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 h r(qtvy,r//a.l6fx sd orizontal 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 dd*nyo-.;awtf s; hxx . n;sg)horizontal with a speed of 30 m/s . Hoxys-; xg.; f;ondw *h.)sdtnaw much time passes 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 v )2iih vo(y;ois launched from the top of a cliff at an angle ofv(;ioiv ) 2oyh $15.9^{\circ}$ 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)