07.14: An object moves to the East across a fric,tt 81c fw7npqt /y9qctionless surface with constant speed. A person then applies a constant force,/ qqyt17ctnp9wct 8f 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 the same spee7.8mspy6e 7bugl0qe5dl e zoz5pu5n pei;/i 5d from the same starting location. Object 1 is launched at an angle oequ 5mu6/l; oe0sip7p l85 b7dzzyin5 g5. eepf $30^{\circ}$ 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 speed from the samuuwar -7 6habx0ap s(1e starting laau7rh -a 1sw0(6bpux ocation. 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 horizontally, directly at the center of a target 20 iuxf(; fdcc 2sj.g58tar fryg5+j* 1 am away. The arrow hits 0.050 m belowf jgf.irs2a58u x(j*dcarf c 1y+;t5g the center of the target. Neglecting air resistance, what was the initial speed of the arrow?

  03.05: Two arrows are launched at the same ti cw/mmnmgnu475v3jkr kp( 6:m me 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 spot on the grounrmw 4(m p3mk/v :mn5g c7jkn6ud. Which arrow arrives first?

  95.19: A baseball is thrown horizontally from a cliff. At the same ikf9:w(/oh3(wsv7 ) aqfnaks p0 nmc 7xnstant, a bowl9xmwa7o ss(na (cp )k /:30nkwqv7fhfing ball is dropped from the same height. Assuming air resistance can be ignored, which of the following statements is correct?

  96.08: A ball is rolled off the edge of a horizontalg,-8i-s a-c nu6gz.iq( zmo:da 4s kpy table. The ball has an initial speecu4ds oia,k.-s: y8 g-qzgz-am i(p6nd $v_0$ 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 vertic;s9lr ;41 q+f. u1pm uqhcsrhbally upward with an initial velocity v and an initial kinetip;q;mr+ lsq 4 1hbc hu.urs9f1c 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 st pc:*di.i 7 ca)vm,gwmorm, bales 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 d:adim vm,7g .) iccw*propped 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 9 b:ofm)p16aae+vjja d from an airplane to a herd of cattle below. Ass af6: ej1+9ajam) opvbume 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 a distance of 50 yards down field. Nemud 7myf/go k 4qb3*(p(4it iyglecting air resistance, which of the following statements would bt7/py (iui(q4g bdo4 mm*y3k fe INCORRECT when the football reaches its highest point.

  03.10: A ball is thrown into the air aq8;u4vn)r7cc1zd z xyt 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 traverm n5c6wso+o3ling first 5m horizontally, th65w+s nm3roo ce 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 angle ,.yf;ybvo (*dgx) gwi 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 launch2- txdrktnl. fhau w9;ha(i/08ckh i1ed from 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 was the launch speed of the projec/f 0iadwhc 8. hk -akh(r9ui;xln1tt2tile? Ignore air resistance.

  13.14: A small ball is thrown ajgy;.yj(0: kik /a s vlr/,agnsov).kt 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 fr-jou: f-1 xbdtom 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 horse2o wh-xe yz ,-hv8v6 ou9ya3izontally from the top of a building is y-9z,2wu 3- vax86evoyeohh sshown 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 36lgmfh tsr5lk/z l:8small object from the top of a building at an angle of h6 5mr:fgzs83lt / kll$30^{\circ}$ 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 angokw 8yyknl1k 5e,kebad6*;(xle 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 horizonz9clmy y0c n3a w.jxtb16da95 tal from a height of 10.0 above the gjcatw9z6cb m0x 9y y3 a1.ld5nround. 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 / *-u/(oze6 utcw7dx)ifdwyc horizontal with a speed of 30 m/s . How much time passes before the position of the projectile makes an angle of 20° abovew*ey u //(-udi)cdt6zcwx7 fo the horizontal from the original launch point?

  14.40: A small 1.35-gram mass is launched ;ho 6nj3amuag(d8 sy1pzl8k 4from the top of a cliff at an angle ofk d;onpsa46 g1hlzjy8 m 8(3au $15.9^{\circ}$ 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)