07.14: An object moves to the East across a frictionless surface with conszx+ l9gmpy(/ic.hg v hq*x4r (tant 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 Northwa(.v h4(qghr*yi9/mgxl zx+ pcrd

  07.15: Two identical mass ob,c/z)jx+b d/kr c6g jdjects are launched with the same speed from the same starting location. Obdc)k/bj, djgr+/cz6 x ject 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 objpvmyp:4pva5,ki2 . *fch) afiects are launched with the same speed from the same starting location. Object 1 is launched ak, *:iay4p 5vh .ap2if)pvfm ct 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, direcx5;1 +*mzpz wu g;ok jyolb6j:tly at the center of a target 20 m away. The arrow hits 0.050 m below the center of the target. Neglecting air resist5 :+*l 6jzm uokowpz1jxg;y ;bance, what was the initial speed of the arrow?

  03.05: Two arrows are launched at the same time with yz.(q 51 i4omazf*l bl-qu3bd 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 spot on th(mbz-yul ofql1z * 453dbqa i.e ground. Which arrow arrives first?

  95.19: A baseball is thrown horizontally from a cliff. At the samf oa4z,l(*ddfe instant, a bowling ball is dropped from the same height. Assuming air resistance can be ignored, which of the following statements is correct (ad,zd fl4o*f?

  96.08: A ball is rolled off the edge of a horizon -clk6 felj(/mvrxin sgx u3x1 ,/-ca;tal table. The ball has an initial speedc1xlmg lsux-/(vf/x-c , k;n ji6 a3re $v_0$ 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 vert2*ad,wgonrc g*1au+ v. krbk4ically upward with an initial velocity v and an initial kinetic en,kgkbo 41.2 u* rrdv naw*ac+gergy $E_k$. 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 dro,2ee 6.em zvgzy 30snbpped from an airplane to a herd of cattle below. Assume the airplane flew horizontally at an altitude of 180 m with a constant velocity ofeg.z60nvzs ,e 23 bemy 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 to their distance of separation?

  00.38: During a recent winter storm, bales of hay had to be droppe rv3-; uiwpu3e+2qhutd 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 droppeh-e u 2 tq33iuvwpu;r+d 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 a 1*zrq w ods)dxd4yvly.o9t3/;6hsg kicked a distance of 50 yards down field. Neglecting air resistance, which of the f4.y 6/ ygtvaxd9ho ds;zo )l*d1qr3 wsollowing statements would be INCORRECT when the football reaches its highest point.

  03.10: A ball is thrown into the air atei2n2 oh 6q8dh82k96friehca 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 horizoca e2ke*i+n0tntally 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 we ei0ca2 +t*nkill fall a additional

  06.04: An arrow is shot from a bo0d d1mk r5)czj, -jjglw 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 grounfvri;wc ,hu i.u/1:mz13yf uz4 6lezpd 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 was the launch speed of the4yl1 zc1mi urw.ze up6/i hz,f;v3uf: projectile? Ignore air resistance.

  13.14: A small ball isoqk,nx7p1 jnr;nuv4 / 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 of a cl-sfn(wais n qi1-g eb(v48y8liff 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 an58 y 56pr)ty3g glvaq:nn 6khi object thrown horizontally from the top of a building iyn p 6iga kq8ylg5v53hr 6:)nts 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 P on the trajectory?

  02.41: A person throws a sma(4e g yv bibg*26t-*)h podhelll object from the top of a building at an angle of geh 2e ypdv4 )b(bl6itoh-*g *$30^{\circ}$ 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 gs4j0:jbkq/g. 0f gc llaunched 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 thel/2o2q4nfiw a9aef l6 horizontal from a height of 10.0 above the ae4 /fa29w2 nflilqo6ground. If the initial speed 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 the horizontal with a 9dups q uu (w)50,4vhamjaa2xspeed of 30 m/s . How much time passes before the position of the projectile makes an angle of 20° above the horizontal from the oriumdapa4,5awu 9 02(q jh)vx suginal launch point?

  14.40: A small 1.35-gram mass is launched from tmmb( o)4a alq0he top of a cliff at an angle of bmaa )0( ml4oq$15.9^{\circ}$ 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)