07.14: An object moves to the East acdh+ rqq9.(/t*zfk ;q clt/ qbzross a frictionless surface with constant speed. A person then applies a constant force to tlc.bqhr tk+ z*q;/qft 9 d/(zqhe 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 mjazcoc+m+n :qtr*.98szl ;tthe same speed from the same starting location. Object 1 is launched at an ang 9q .jts zrocc: n++tm*zaml;8le 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 witlo(x(m)87aoa3 t fc xgh the same speed from the same starting lo(m3 7(af xx)cao8gltocation. 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,bh7 bl3;c 1dmkl ba8d w+6;ywu 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 wascdmldw;k b+6;yul7ab3 1b w8h the initial speed of the arrow?

  03.05: Two arrows are laun zou;plg66oe 7ched at the same time with the same speed. A at an angle greater than 45 degrees, and arrow B at an angle l7 o6u6 eo;zglpess than 45 degrees. Both land at the same spot on the ground. Which arrow arrives first?

  95.19: A baseball is thrown0vmp f0mo,mz* horizontally from a cliff. At the same instant, a bowling ball is dropped from the same height. Assuming air resistance can be ignored, which of the fo *mmm0ofp,zv0llowing statements is correct?

  96.08: A ball is rolled ofwq fedbbc/*zi c;k) 76f the edge of a horizontal table. The ball has an initial c b*cek) w/b6z f7i;qdspeed $v_0$ 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 with an inijc)1gtat6 d y 52pkc8te,5jlb tial velocity v and an initial kineticctb,j8)ge 6 k1j25cyl ad t5pt 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 storm, ba;be4x )tsil sm-njgj0.7g 4pgles 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 dropped one bail of hay e-40 4 l7mgg jn;ex jgpstbsi).very 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 dropped from ab+cm 9as8z3slc+q *zan 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. About how far apart from each other will the bales landsl3* 8z+cbzc9 asaq m+ on the ground?

  01.14: A football is kicked a distance of 50 yards down field. Negl.koltsa mk ++7ecting air resistance, which of the following statements would be INCORRE.sta+k+k om7lCT when the football reaches its highest point.

  03.10: A ball is thrown ir62/llx ez (axnto the 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 towardg +bavm:1 5dcflo1i-d( cab (w a target 20 m away. In traveling first 5m horizontally, the arrdv 1b(w+omaiafc1b 5(dl: gc -ow falls 0.2 m. In traveling the next 5 m horizontally it will fall a additional

  06.04: An arrow is shot fr b*2ef7eqf2w /zcq)ksom 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 launched from the ground landr a62qw 1ra0myed a horizontal distance of 120.0 m from its launch point. The projectile was in the air for a time of 4.00 mwya01 raq2 6rseconds. 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 uptc2 i.pqfc9r 57sr9is 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 l:kl,fl6 y1u+wj go ss2aunched 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 thqs08xxx h3 0i0tg( jhop of a building i (30shtq8j 0hxxhg0ix s 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 sma9dqiu1(nenhk.z f: kq5f f .k:ll object from the top of a building at an angle of n:.i qf.e1:kd h ff(kkqunz5 9$30^{\circ}$ 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 ang*h9i jsxt( kbm 5cq,w,le 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° abovecdv sf,7 mg.v)0zx: xzab *;ke the horizontal from a height of 10.0 above the ground. If the initial speed of the object is 15.0 m/s, at what angle below the horizontal is the object moving when b7:edzzk *f) 0axm.gxv;vc,s it reaches the ground? Ignore air resistance.

  17.32: A projectile is launcffzku/d/q1b lvyb 1h 1s8+d, yhed 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 m u yzd8ysq//f1klb1b f ,dh+1vakes an angle of 20° above the horizontal from the original launch point?

  14.40: A small 1.35-gram mass is launched f0rsyq bqa*b7x 02k,gx rom the top of a cliff at an angle of ,xb0ks yb*q 07g2qx ra$15.9^{\circ}$ 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)