07.14: An object moves to the East across a frictionlesqigtum dm ,:r:h(6/jc*c 0l6 xnk5cnss surface with constant speed. 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 Nor c 0*drcql6m6x/:t n:ki m ,gunj5hs(cthward

  07.15: Two identical masq)zwsk 7b; o5is objects are launched with the same speed from the same )kz75sbo; wiqstarting 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 miyn+b: 5 (a/ mwnla1q5 cb3kzxass objects are launched with the same speed from the same /ma(:bw k 3y5qn+xicnlb1az5 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 experiences the greatest change in the linear momentum?

  94.14: An arrow is aimed horizontally, directly at the cen 4k sn9egi97imter of a target 20 m away.egs9nim i947k The arrow hits 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 launched at the same time with the same speed. ( ho*;rf iny p,vp.g1et;+ sqoA at an angle greater than 45 degrees, and arrow B at an angle less than 45 degrees. Both land at t;gphn o.i t q(1;pryo sev*+f,he same spot on the ground. Which arrow arrives first?

  95.19: A baseball is thrown horizontally from a cliff. At mwyv98 2lq w0rthe same instant, a bowling ball is dropped from the same height. Assuming air resistance can be ignored, which of the following statements i2qvwlr 9wym08 s correct?

  96.08: A ball is rolled off the edge of a horizontal table. The ball has an inmph*52tmad,v69wz b vitial62a 5,*pvdwhb9mzm vt 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 ini4r5z*ies w;b ,t-5khj0(jcd bdp dz8ktial velocity v and an initial kinetic energy k*c0tjewih;5 z j-rdsdz,k(8bpb5d4$E_k$. 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 co5khp:,kd: w 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 i,hdw5 kp:o ck:s 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 sthgun4ztfzo o/ )7x g3w+fs)x(orm, bales of hay had to be dropped from an airplane to a herd of cattle below. Assume 3gfzzg(s o x4 hfx7/)+otnu)wthe 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 fi a7jq+y1boq u;zmu+ 5deld. Neglecting air resistance, which of the following statements wou+ bjmu5qq7day; o1z+uld be INCORRECT when the football reaches its highest point.

  03.10: A ball is throwymw8j4 ,7l p th;oy x61ieh8uan 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 horizontally tot0 /6+0maoduj,gy 4* nmjf npzward a target 20 m away. In traveling first 5m horizontally, the arrow falls 0.2 m. In a n/+u,nf4t 0od*6j0 g mmpzjytraveling the next 5 m horizontally it will fall a additional

  06.04: An arrow is shot from a bow a;b iyb t(pj ;i:l(d3mdq9t6i6m eh3uut 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 horizy-wy73d2gxiif( (t u uontal distance of 120.0 m fi (wtf(g7 i2u y3xy-udrom 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 projectile? Ignore air resistance.

  13.14: A small ball is thrown at an as7 fwmh1c)of-5cjr jhliid u3,13z- d ngle 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 spc9y4 ,uadc3p reed $V$ 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 b3 , a8f2ad.8 5bg9 ee 1jycfuqol+sirrj;:rn 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 correspond to the directions of the velocity aae.rgadcr3y1jfqu +nr;f sbe5 2, 988ljibo :nd of the acceleration for the object at the point labeled P on the trajectory?

  02.41: A person throws a sm 5x cxedcm.+;mall object from the top of a building at an angle of + 5m mce;xx.cd$30^{\circ}$ 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 launxxdq1 n,*cy 7 8e0z*w; hot0sn tanki0ched 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 cv)1vqj wmn0e *gm6:z 2gwvm1brfs *5po z 3m7launched 30° above the horizontal from a height of 10.0 above the ground. If the initial speed of the object fws1 )m7*c wzj1vqomge m 6m3nvpz v*g0:r5b2is 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 o 6r7llz 1lh),y cvvd/pf 40° above the horizontal with a speed of 30 m/s . How 7,y6 rlvz/p)cv1 dllh 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 is launched from the torh f+; xmi82egp of a cliff at an angle of 2m;rif+eh 8 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)