07.14: An object moves to the East across a frictio e7 wia +(k35dt- zsndb*wv5nbtda:y: nless surface with constant speed. A person then applies a constant force to the North on the object. What isyz:e 75dkb-a :n5bt+ntd wwsa*3(dv i the resulting path that the object takes? A. A straight line path partly Eastward, partly Northward

  07.15: Two identical massd7ys7p stv4m oc i**lye2:nf ) objects are launched with the same speed from the same starting location. Oyvs4:2do)ycn p* l*i7 t efs7mbject 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 g)i/v h7p8,n pzausj54ncl8mlaunched with the same speed from the same starting location. Objectnpa ,s/l4nui 7pjh5 ) 8gcvzm8 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 a(qii1v7lc e:v t the center of a target 20 m away. The arrow hits 0.050 m below the center of the target. Neglecting air rescqv7i( i v1:leistance, what was the initial speed of the arrow?

  03.05: Two arrows are launched at the same time with the same speed(c6ye7m o;/so)rsip s. A at an angle ios6yse rp( m);c /os7greater than 45 degrees, 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 eo x6e09bkzt /a cliff. At the same instant, a bowling ball is dropped from the same heig z0bt6 exko/9eht. Assuming air resistance can be ignored, which of the following statements is correct?

  96.08: A ball is rolled off the edge of a horizo5k3 f x fym6-p/wrkh*bntal table. The ball has an init fkkx/m* py5hbwr3 6f-ial 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 thr:ud 0ym; .)xcw42f jo flffd8oown vertically upward with an initial velocity v and an initial kinetic energjfo4f:w2cxld)oufd. 8f 0;m y y $E_k$. 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 5u(lvgr owx9x2 t5-.jbn,vyzstorm, 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,5l.bv5yo n xuxj 2(zv-rtwg9 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 of separation?

  00.38: During a recent winter storm, bales of hay hauzozd0. + ,nmad 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 situadu.oz zn ,m0+ation. About how far apart from each other will the bales land on the ground?

  01.14: A football is kickeuh;8kibkq1rv9cg7gm c, 9r1cd a distance of 50 yards down field. Neglecting air resistance, which of the following statements would be INCORRECT when the football reaches it 1g h u18igcm;9,rqrck79kcbvs highest point.

  03.10: A ball is thrown into th4 vfi 6r9d/-lfjyte x)tk/bz8sc -ko )e 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 horizob e:t6. a(w lsljj*(ulntally 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 will fall a au e:aljws lj.*b(6 tl(dditional

  06.04: An arrow is shot from a bow ;dli7j e:w grfte9ee2hq;/mvade6,0 at 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 horizontal dis:muckkdvv/)m z /7*w mtance 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 vertical position from which it was launched, what was the launch speed of the prk c/v k7mv:zu*)wm/mdojectile? Ignore air resistance.

  13.14: A small ball is thrown at( eob5jlgv7w ; 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)rdk wb /e2 /l9hm4zac is launched 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 :ug 1zo-(9mhbjfeg (xej( e o1object 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 directions of the velocity and of the acceleration for the objectg mo -exb(1( z j9j1heo(:fueg at the point labeled P on the trajectory?

  02.41: A person thro+8d rs ;awrq0m, p(p qnuwk9 5m-pbu+lws a small object from the top of a building at an angle of ,+l wpm08p9un ps bu(a-m;qwr5krq d+$30^{\circ}$ 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 y a/xinfi w:n00g un0-gq-bi3at 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 irl7iz 3qi l;*ts launched 30° above the horizontal from a height of 10.0 above the ground. If the initial speiz 7qlr;l i*t3ed 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 launched at an angle of 40° above thp2gz5 7zkv 6 aiw/t- srq9unu*e 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 launch poink2qz5t9 urguv7 asn -/*ziw6pt?

  14.40: A small 1.35-gram mass is launched from the top of a cliff at an angle ofsa* m;pu3omi4 4mi*pma ;uos3 $15.9^{\circ}$ 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)