07.14: An object moves to the East across a7.ypu qhik62vrk.2vc frictionless 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 partlyv. 6 pkqycv72. ukhr2i Eastward, partly Northward

  07.15: Two identical mass objects are launched with the same s )z,bt:op1 d)/8 lns3a2rqcw ubwoqm9peed from the same starting location. Object 1 is lauqonqt8z9r3 : dscpwm)b,ao)b 1 2wu /lnched 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 launched with the same snanx445u3b e z:gg x;jpeed from the same starting location. Obj5:en j angx4x3u zbg;4ect 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 center of a target 20 m ax w0hfqr1 jw) e74w 9;-izrk jbidp48wway. The arrow hits 0.050 m below the center ofiz f-48rpwhw4bqw90 j e j)7di1k xr;w the target. Neglecting air resistance, what was the initial speed of the arrow?

  03.05: Two arrows are lans)z1q jm:11jismm 2gunched at the same time with the same speed. A at an angle greater than 45 degrees, and arrow B at an angle less than 45 degrees. Both land at the same spozm js 1sn 2)i1:g1jmqmt on the ground. Which arrow arrives first?

  95.19: A baseball is thrown horizob o 8h7f(itvdy(vy7 7gntally from a cliff. At the same instant, a bowling ball is dropped from the same height. Assuming air resistance can be ignored, which of the following statementsv(7vyhigbf 7d(y 7ot 8 is correct?

  96.08: A ball is rolled of ub,a)e(*ro24.. et n qw8sot qndc1eff the edge of a horizontal table. The ball has an initiaoc,ee..tf2*tb)so 8ne(n14uqqa wd r l 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 initial velocity v and an in pep4ti0:dn5 dr thlclu*,, j3itial kinetic energy4u pld*rpl:35tce0 tid,,jhn $E_k$. 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 dropped from a(am;ue6/dg(a o2 cif x3mxj-i n 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 thf2/ oce (aa i-;(x6mx3ium dgjis situation. As the bales are falling through the air, what will happen to their distance of separation?

  00.38: During a recent w u9drrua3ec7-)k btw(inter storm, bales of hay had to be dropped from an airplane to a 3kc)wd79ter (ru-bauherd 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. About how far apart from each other will the bales land on the ground?

  01.14: A football is kicked p+)ocvh pt,k4 a distance of 50 yards down field. Neglecting air resistance, which of the following statements would be INCORRECT when thk4),h +opcv tpe football reaches its highest point.

  03.10: A ball is thrown into the air at an y9wqklkw w*wp;l:74y ;suyr ra*u2 v.43j iiiangle $\theta$ 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. In r*) n5a(xajzs traveling first 5m horizontally, the arrow falls 0.2 m. In traveling the next 5 )nj5s *(azxar m horizontally it will fall a additional

  06.04: An arrow is shot from:r3ckxzcm 5(0)lmqwy* +w/.xg zup ds 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 j) n-j hm-uubv6no ,9 cy2m(hffrom the ground landed a horizontal distance of 120.0 m from its launch point. The projectile was in the air for a time of 4.00 seconds. If the projectile landed at the same vertical position from which it was launched, what wa mhjjm69-n, 2n-y fh(u)bcu ovs the launch speed of the projectile? Ignore air resistance.

  13.14: A small ball yjym y5 8wupxmfi 7-n +8g0eg;is thrown 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 sm4b (o.kg 4gsof 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 horizont4jjqc2 x ffn(7wgdzhc( 9bb cit1,w 24cr16jr ally 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 labele1dwqwfbg ,c r7 (rfn hcc4 cjz9bx2(jtji64 21d P on the trajectory?

  02.41: A person throws a smallq-v8qj48p bcv object from the top of a building at an angle of 8bc j4vqq8 pv-$30^{\circ}$ 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 la) x9fs-d+cmpgwo5 f6n unched 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 launched 30° above the horizontal frze(j- 4x0 0 pbvj9bzunom 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 objectu v en-bx(4zb0 j90zpj moving when it reaches the ground? Ignore air resistance.

  17.32: A projectile is launched at an angle of 40° above the horizontgu8kc2 d8jff 3-xgxtc/o bd0)al with a speed of 30 m/s . How much xgxc 8kouf8d)d 03c-f/gt b2j 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 top of a cliff at an angl:7b d1z xd1vwb6aeau( e of 1xdw:1 7 d6bvbaez( ua$15.9^{\circ}$ 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)