07.14: An object moves3(4ubhs 9 .o4aanwqje to the East across a 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 strnb ujwa 4.oqae9hs4 3(aight line path partly Eastward, partly Northward

  07.15: Two identical mass )c5t3k 9wzc suobjects are launched with the same speed from the same starkwc5z)utc 3s 9ting 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 mass objects are launched with t -zlk+r;p bm7kejva +hc2z /g+he same speed from the same starting location. Object 1 isam ;2 bczv+k+pre7ljzkgh/-+ 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 horizontallf 1wuef3(y46zlfp/7*jsyroi y, directly at the center of a target 20 m away. The arrow hits 0.050 m below the center of the target. Neglecting air resistance, what was the y*ysif1fr ulpzf j4(wo7/e36 initial speed of the arrow?

  03.05: Two arrows are launched at the same time with the same speed. A at an altg v /3dh6.iqw4;q5ws z-hl vngle greater than 45 degrees, and arrow B at an angle less than 45 degrees. Both land at the same spot ont;3hvq d4 5l./ws -lv zqiw6hg the ground. Which arrow arrives first?

  95.19: A baseball is thrown horizontally from a cliff. At the same i+etkshn50, )0e.bi*7 deeecfnaj o(e nstant, a bowling ball is dropped from the same height. Assuming air resistance can (needhifs. oeej) ,e +kn0*t7 be ca05be ignored, which of the following statements is correct?

  96.08: A ball is rollederrgohg5,ui6 5e5 ps : off the edge of a horizontal table. The ball has an initial speo 5g 5s5rie rgp,eh:6ued $v_0$ 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 vertica..tgrxy - tnk* .*emddlly upward with an initial velocity v and an initial kinetic e..gdnky.dmt *xrt-e* nergy $E_k$. 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 fro:9t irrjirhh( (nf6y; -sjh+b m 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 nh(t ijbh9s+rh 6:i; jfr r-(ybe 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 dropped frv6,j j ev1dtd( 5;mqhdae6a(xom an airplane to a herd of cattle below. Assume the aidaa5jjd 6;e ( td1hm6e(vqx ,vrplane 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. Neglecting ai20nbakcy; 8t rr resistancr0y2;nakt cb 8e, which of the following statements would be INCORRECT when the football reaches its highest point.

  03.10: A ball is thrown into the gp5yrl7u.o j(cv 3y /xair 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. In travelin- isye1;42x n/ j+tuz9yprck hg first 5m horizontal;r he ij2p1y9s /yxnzcu-t +k4ly, the arrow falls 0.2 m. In traveling the next 5 m horizontally it will fall a additional

  06.04: An arrow is shot from a bow at an anw;25 / ;rg3fkszwoqfx;x5hpg) uei 0mgle 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 t2 xzq(5vf) oothe ground landed a horizontal distance of 120.0 m from its launch point. The projectile was in the air forf tv)q 2oxo5z( 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 atuy;g9q-a m z,n 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 ph:z9(qt r dgb )rnar3(lka/7cliff 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 thrownqvfwsgrx) hz82 mml) t3m;/k. horizontally from the top of a building is shown as the dashed line in the figure. Which sets orw ;z /.lgt8msh)q2x) m3fkvm f 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 small object from the u2guro7 (:o*/hyolo rtop of a building at an angle of hou /7r (:2 lgoruyo*o$30^{\circ}$ 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 grous5 -bst i,fjk8nd 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 horizontnn-tox4x* by.v) (fixal from a height of 10.0 above the ground. If the initial speed of the object i (y*x bxfo-n.t)x4nv 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 4o8- npdyqx)s x+/i/fymab)y at an angle of 40° above the horizontal with a speed of 30 m/s . How much time passes before the position of the projectile makes 4x im)ys xfqyd-n/pyb+oa8/)an angle of 20° above the horizontal from the original launch point?

  14.40: A small 1.35-gram mass is launcybye pb8g2 l,/o2ttv8 9c*zc- qaawk 1hed from the top of a cliff at an angle ofy o92qwk*t/8 aec1l,bbg8-c ztvpy 2 a $15.9^{\circ}$ 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)