07.14: An object moves to the East across a frictionlesrt3 57h waa)tos surface with constant speed. A person then applies a constant force to the North on the object. What is the resulting path thh3 5waa7tt o)rat the object takes? A. A straight line path partly Eastward, partly Northward

  07.15: Two identical mass objects are launched with the same speed from t cu4s;1zmf4gc 6/b ,:j.n0yzxbrdop vhe same starting loy4cb rubjz:mz;4/ od6 vc. xfp,nsg0 1cation. 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 the same speed from the samcqz0:a ra q1,ee starting location.eaz,q 1r:0c aq 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, directl+fs i1zjq+4n p +ma5f/ fi9cgqy at the center of a target 20 m away. The arrow hits 0.050 m below the center of the target. Neglecting air resist9aqq g1fmfi z+/ cnj54+fpsi+ance, what was the initial speed of the arrow?

  03.05: Two arrows are launched at the same time ws5,7;f7 7lll 1er lqlekqnfu)ith the same speed. A at an angle ,l7llu7l 5e;rs1e)qf k7fqn l 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 arrives first?

  95.19: A baseball is thrown horizontally from a cliff. At the same 7 n .g6ani gy3:mmek+hinstant, a bowling ba6gy3gk. n7naeihmm+ :ll 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 horizontal tablm.-2c9 jwin6f vlae9cv4 gw9fe. The ball has an initiallfwi-cjv fv9 n ce9 4mwa.9g26 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 w:bswe sm*wuj5 ia-6:v7 ac0dvith an initial velocity v and an initial kinetic eneijd-svc awms:0v5 a7:we*u 6brgy $E_k$. 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 ofa /igoyn6i 1)l ;av0tgos n7)h 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 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 dig)a on)ng7i 1h6;s ivy/oal0 tstance of separation?

  00.38: During a recent winter storm, bales of hay had to be dropped from an airp7l c+ nm:wmg)dok)+ujlane 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 resistancw+ mo)uck7+lg:jm dn)e 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 distanceec lld.:zy-o /1cthx 8 of 50 yards down field. Neglecting air resistance, which of the following statements would be INCORRECTyzolh 8:dtx/-cc le1. when the football reaches its highest point.

  03.10: A ball is thrown into th0 q:2 2vtbr*brmz; eiz) hnwx.e air 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 0-nk nnfzfbyu96n *qy /-2l98 g yfixgtoward a target 20 m away. In traveling first 5m horizontally, the arrow falls 0.2 m. In travn nz yfb*q2k0f-n9 yy8/lnxf-i 9u gg6eling the next 5 m horizontally it will fall a additional

  06.04: An arrow is shot fr, amhqxx,bqb +l1d3/mnv.m b0x i) c+iom 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 l5 jeytylqcqq-ry gea2qnkc(fd v*0*6 4f9k(7aunched 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 projecrqyl ceqq2*qk( vet5fy9-c a6y40fg(j 7* nkdtile 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 iszr 67mtt 7* r8m*uicxz 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 launchedfk5 iuq0c:d 4k 5p1sm(bq ee,s from 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 horizontally from the top of- s(elayde xr7x5lb ur1 -ig0;pse4v2 a building is sho( is ;e2slr yv417ug rxe0d- apxbe-5lwn 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 small object from the top of a building 68kzg9a x 1kt:lnuw s+at an angle of 8 :ztsu96 g+wknxak1l$30^{\circ}$ 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 laun g0aboa0; qz2bched 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° above9u0mq(ykef( r the horizontal from a height of 10.0 above the f(uy0e9 kq(mrground. 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 arnn/9:nup 2e d speed of 30 m/s . How much time passes before the position of the projectile makes an angle of 20° above the horizont/: 9ednr2p nnual from the original launch point?

  14.40: A small 1.35-gr6yh;,.50 onppnz3l3a ou qw (tj)gfpdam mass is launched from the top of a cliff at an angle of nuyf6(0.dtanzogp3j;phql 3 )o p5,w $15.9^{\circ}$ 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)