07.14: An object movhvzehp2 mw+q5x v9m76 es 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 thavw h+zev2mqh x697m p5t the object takes? A. A straight line path partly Eastward, partly Northward

  07.15: Two identical mbku /u v,q-x5aass objects are launched with the same speed from the same starting location. Object 1 is lauqa,u bu5-/kvxnched 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 cw0( -y2p6 bb u fx:xahgfp.kck-v r-1with the same speed from the same starting location. Object 1 is launche- :ahk u cpf0yw (vf-6.1p-b2ckgbx rxd 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 t0l6jy.jeu on ; 5be7u p:s-vfnhe center of a target 20 m away. Theyn0 supe;nb7:fu6-ljo.ve5j arrow hits 0.050 m below 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 time with t)g:ww/vsokr2 he same speed. A at an angle greater than 45 degrees, and arrow B at an angle :w)wk s/2ogvrless than 45 degrees. Both land at the same spot on the ground. Which arrow arrives first?

  95.19: A baseball is thrown horizontally r0)ja7 pa/vd r0eln c5from a cliff. At the same instant, a bowling ball is dropped from the same height. Assuming aidaa0rrnvecjl p5)0/ 7 r resistance can be ignored, which of the following statements is correct?

  96.08: A ball is rolled off the edge of a horizontal table. The1 -z vdd5b:gpqsbe zfy43:1mi6q ngh : ball has an initial byv zbgsn-m:q4:3d5hf g11:z6ip qedspeed $v_0$ 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 initia w 6 +f3m/fdfo9gup ta7a8ho2hl velocity v and an initial ki6fu /2ahf7gmt3fp+ ooh wad98netic 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, bales of hay had to be dropped from ap9jbr(qx psdqw): :;in 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 situa rp(spdx w;:):qbjiq9 tion. As the bales are falling through the air, what will happen to their distance of separation?

  00.38: During a recendkw;(vpfu+d f,7j twj *9fv8x t winter storm, bales of hay had to be dropped from an airplane to a herd of cattle below. Assume the airplane f ;ff8, 9tuvd+k7wp*(vdwjxf j lew 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 airaxm)n/q/ uf(y resistance, which of the following statements would be INCORRECT when the football reaches its highest poiy/f auq)mx(n/ nt.

  03.10: A ball is thrown, t6t pvzalg,l4 ;v/q.v:j ojx into 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 toward a tofz hn3+ 9hq6farget 20 m away. In traveling first 5m horizontally, the arrow falls 0.2 m. In traveling the next 5 m horizontally it wi ffo+zhq6h9n 3ll fall a additional

  06.04: An arrow is shot from a bow at an angle o 4rx j/a(q. h2p-hfs*a5 n pp31pcnsgnf $40^{\circ}$ 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 landipe3 1exude x5 kl+6v.ed 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 the1ei5p kexdu6e l3+v. x 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 an ang,5l+zsj.nnwr(p/ y:pjx,i oc -qx btgts1a,,le 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 ma n) /byr kzhhay;8:oe )goi5r/ss is launched 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,n4q mi*u8-acr ulz ,s trajectory of an object thrown horizontally from the top of a building is shown as the dashed line in the fiac,4sur8 mn,-u*q z ligure. 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 ;kudf uta.v,4a small object from the top of a building at an angle of fu. ,t4vd;uka$30^{\circ}$ 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 angle o ;qkppn4bt5l5 f $60^{\circ}$ 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 fr3c.wqc 7,a mfzizwa:q22dv h;om a height of 10.0 above the groundhvcaqf: 7,d22zwwqaic m. 3z;. 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 hopvanb0sks *9 v/0h m;mrizontal with a speed of 30 m/s . How much time passes before the position of the projectile makes an angle of 20° above the horiz9m0b* ; k0v/hvmpss anontal from the original launch point?

  14.40: A small 1.35-gram mass is launched from the top of a cliff 8z**1ociu23c a31uhd ,hfx:4 j pgeuux:ws yi at an angle ofyj:8u *chg3 w*i4hc1ai of 2eduu x3 ,:pxs1zu $15.9^{\circ}$ 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)