07.14: An object moves topa kri 3c9e3;u the East across a frictionless surface with constant speed. A periecua;9 k3p3rson 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 Northward

  07.15: Two identical mass objects are launched with vch sfa,8,06avp3v wpthe same speed from the same starting location. Object 1 is launched at an af8,wvvs h,3p6ca0pv 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 oba glvc8k1jb- gv)*i*w jects are launched with the same speed from the same starting location. Object 1 i8g bwalvk*i cj1v* )-gs 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 b i*gt1sog)( 0c7bidm.w zt 4ncenter of a target 20 m away. The arrow hits 0.050 m below the center of the target. Neglecting air resist0iw1d4bit z .mot)gb(s7nc*gance, what was the initial speed of the arrow?

  03.05: Two arrows are launched at the same time with the same speed. A at an es l. 1jrxg)x*af,,a zangle greater than 45 degrees, and arrow B at an angle less than 45 degrees. Both land at the same spot on the ground. Which arrow arrxs*,xra1 j.zg) elf,a ives first?

  95.19: A baseball is thrown horizontally from a cliff. At the same instan k9z s9p/ /zh)f-fqfpqxc b28ut, a bowling ball is dropped from the same height. Assuming air re/2z99h/b cqs-q )zppxfku8 ffsistance can be ignored, which of the following statements is correct?

  96.08: A ball is rolled off the edge of a horizontal tablej0fr0ppoi+z7ug-c r 0. The ball has an initial speed 0c-0f 7 0ruzipr +jogp$v_0$ 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 verticav9v*d7z;hlja0z sz 8 m5qa7cx3ix yutc b(1,rlly upward with an initial velocity v and an initial kinetic enelyrb(mc5 *a 8t9qvjdzsh czvxa ;31i,7u x70zrgy $E_k$. 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 droppewr:+v0dcsk3 m d 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 everm+ v0cwsr 3:dky 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 had9qyim99xl1 * /b a sn,zyq9gam 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. Aboutb mx/9sa,gy9y1ali99m qn* zq 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. Ne j .pz,- 8o:nn.qccver0vev7r-jp lv ;glecting air resistance, which of the following statements would be INCORRECT when the foolr:v-v e;z8 v 7jj,r. vn epcnp-0.qcotball reaches its highest point.

  03.10: A ball is thrown into the air at an -t9m-l2l)dw0v aanvb * pzzg) 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 8mk -lsoz51g7n crgfn. zu37ea target 20 m away. In traveling first 5m horizontally, the arrow falls 0.2 m. In traveling the next 5 m horizontln z ufc gko81g nsm7r3e5z-.7ally it will fall a additional

  06.04: An arrow is shot from a bow at an an y/g(m.v5jwkk*n ziy.-qhpq 3gle 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 y(xn b1mh,/sz+)cmy mlanded 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 lam bsyh+ /,) c(m1xnzymunched, what was the launch speed of the projectile? Ignore air resistance.

  13.14: A small ball is thrown at an angle-/wzy 21pew hr 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 wjla-j9r s ypt8df902hl/,-* sxzi dee ith 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 horizontally from thx*j 6 n0mltj 5mzm1lv(2hx4t ue 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 56lvj4 1(xj*t x0ntmh u2lm mzP on the trajectory?

  02.41: A person throws a sem hvgijh7,ku1/86t dmall object from the top of a building at an angle of jdt7/m h6ue1h ,iv8kg $30^{\circ}$ 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 lghdf jh(0* *pr:c+ koyaunched 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 from a height oi3r ojx3i0j9 h 8cauv5f 10.0 above the ground. If the initial speed of the object is 15.0 m/s, at what angle belowi5ij0 93h3 vjrx ocua8 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°j57lz.bouzyj8x6 0 js 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 from the orig8 .5 zx06usyjbj zj7loinal launch point?

  14.40: A small 1.35-gram mass is launched from the top of a clifft07 mvqy6mknbmq8ymn :6e; (g at an angle ofn;06mm6ev:(bqg qymk 7myt n8 $15.9^{\circ}$ 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)