07.14: An object moves to the East across a frictionr2tu *5iap )yb:pp l+yless surface with constant speed. A person then applies a constant force to the North on the object. What is the resulting path that the objec+2p p*:a lriyybp5)ut t takes? A. A straight line path partly Eastward, partly Northward

  07.15: Two identical maanf5 fd 37kike.za lv/i.*l l9s.v-dpss objects are launched with the same speed from the same starting location. Onl il k 7pdz5f-*3i.e.f.v/ka9lsd avbject 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 ma t,eyy42m (yoess objects are launched with the same speed from the same startin(y4eoe y2, mtyg 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 horizovux 7u vx(-d/intally, directly at the center of a target 20 m away. The arrow hits 0.050 m below the center of the target. Neglecting/ d-vu(v 7xuix air resistance, what was the initial speed of the arrow?

  03.05: Two arrows are launched at the same time wn*2ou2fta dg- ith the same speed. A at an angle greater*- doun2f t2ag 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 a cliff.q wq1(**f 8yqc)eqvrz At the same instant, a bowling ball is dropped fc)18*wfr qvq( yz*e qqrom the same height. Assuming air resistance can be ignored, which of the following statements is correct?

  96.08: A ball is rolled off the edau )07adwwk n,h(h f:gge of a horizontal table. The ball has an initial spehw7ga n:uah w)0d(kf, 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 wiw ch41 1j 0s+bntcp(twdnro)8 th an initial velocity v and an initial 8 b) t(w1sn1c4 ronpt wc+h0jdkinetic 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, baleiy-tf kcm7fedw5u/.51m-x q us 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 thek-1u 5x7 wmqu5tce mf-.d/yfi bales are falling through the air, what will happen to their distance of separation?

  00.38: During a recent winter storm, bales of hay had to be0hb/myc ol gq5zvd*+,n/inv9 dropped from an airplane to a herd of cattle below. Assume the airply vn/5i / gdh z9+n*ql0co,bvmane 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 field. Neglh pw +2jx;a: utc3juo2ecting air resistancewx 23 jc:ju+o;au2 thp, which of the following statements would be INCORRECT when the football reaches its highest point.

  03.10: A ball is thrown m5;j b )fmd;u w+ca6dbinto 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 toward a target 20 m away. Idx9 zmrwx.; d,ofjv6c8h9 (r. jxv-wun traveling first 5m horizontally, the arrow falls 0.2 m. In traveling the next 5 m horizo wxx8c9r;jd6wx.vhvd9 f(.r,z om u-jntally it will fall a additional

  06.04: An arrow is sh1-8qw-z szhn69 bq5wew tsj5not from a bow 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 n: qa-mc.s+aw the ground landed a horizontal distance of 120.0 m from its launch point. The projectile was in the air for a time of 4-q: +a.aw msnc.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 m/ niryx858q ean 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 launche ,ka 3 pbrjtbbxt;g8;(d 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 horizontadop w 6; v e6wr08*nw2xjs,zljlly 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 object at the point labeled j w; n08eo*2lsv6p xd w,z6jwrP on the trajectory?

  02.41: A person throws a small object from the top of a building at an ang5f l m/p nyhghsbw5-)(le of /hp-n( y l )g5fsbmw5h$30^{\circ}$ 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 angl,nbfe zn*;e m*e 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 ht h2tqy6: 7zhz b o)iuro.0pf6m:ceco0 1b8wrorizontal 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 horizontal is the o c0q0b6r2heyt1fom 6i)bw::cpoh.uz7r 8t z object moving when it reaches the ground? Ignore air resistance.

  17.32: A projectile is launched at an angle mzrf+0 g32n 4rdm;s uvof 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 f0u fv r;d34s+zmg2 rnmrom the original launch point?

  14.40: A small 1.35-gram mass is launched from brl -i1xlm( :lvfz,*tthe top of a cliff at an angle of -m t,vlflrzi:l *xb(1 $15.9^{\circ}$ 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)