07.14: An object moves to the East across a frictionless surface qa d0y1d 8op 2ai5mriv d)p(c9with 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 straight line p)a 1yd5voa02(qi9m cr pdipd8ath partly Eastward, partly Northward

  07.15: Two identical mass object-x yc3*q qf,le/ tets f/0sqk*s are launched with the same speed from the same startingc-3 eqf l/eys* fqqs,/0k*xtt 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 launchedwfcohq-/w6n , gbxc*/ with the same speed from the same starting location. Object 1 is launc/6cx* wg-whf/q nob, ched 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 r+/ m wyjk+*cjcenter of a target 20 m away. The arrow hits 0.050 m below the center of the target. Neglkr/*jyw+ m +jcecting air resistance, what was the initial speed of the arrow?

  03.05: Two arrows arezg4i/vz/dl 8x launched at the same time 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 g8/z/zx4 idv glround. Which arrow arrives first?

  95.19: A baseball is thrown horizontally from a cliff. At the same in+3,lj zg9t l:c+y eslfstant, a bowling ball is dropped from the same height. Assuming air resistance can be igno e lf9y,+tg:lzsc+3jl red, which of the following statements is correct?

  96.08: A ball is rolled off thag0ure5,zu; c0t jbo mtg7/(n*wtj5re edge of a horizontal table. The ball has an initial speegt b ;rm j5nt uuez0(rg5/0w*ac t,7jod $v_0$ 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(f(fsun:.r;ubqoot 40 ywg(lrak-;l ith an initial velocity v and an initial kinetic energywk.(uo(0b rg o:raf(;sf ln4q ylu;t- $E_k$. 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 b(-fs mg89vq1u dkfn/hay had to be dropped from an airplane to a herd of catg-(9bfmd/ q8 vfkun1 stle 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 distance of separation?

  00.38: During a recent winter storm, bales of hay hzd38jjfy+;yj frk ( 8-8zd c6 xnf/ariad to be dropped from an airplane to a a6cr 3nzf/8y ijz(f8jd ry jf k8xd+;-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 land on the ground?

  01.14: A football is kicked a distance of 50 yards down field. Neglecting air recu+gg4q-e 1az;0i)ol,bi z zk sisz 0bg o4lqa g zz)-i1ue+;,ckitance, which of the following statements would be INCORRECT when the football reaches its highest point.

  03.10: A ball is thrown into the (52f4bz.5vaia afm j wqhc2:j 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 target 20 m away. In trsg gcv9a/,b,t aveling first s v cg9a,gb,/t5m horizontally, 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 b ouc4fs) 4 umch yi;r4pj-a, mng,7e3kow 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 lb1kof)c*v gfk8/s2yz 6rp /oq5,qi zranded a horizontal distance of 120.0 m from its launch point.*yio6q k5r8 ,rvpfkbc 1z/z/f)gqs2o 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 projectile? Ignore air resistance.

  13.14: A small ball is thr*oc w4tfed .+a+efp) cown 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 launched from thejs3t,l1wur;6f0ac5. rqz 8ly ulw hd q-m60 qb 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 tse3xay el8 ,9x3xz w+pop of a building is shown as the dashed line in the figure. Which set89w3 aexzx l ,s3e+yxps 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 txc, lfn/,si4 a building at an angle of c l4t,i,n/xsf$30^{\circ}$ 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 tt zx/zp1 sf(*launched 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 istm4:c(xgj mj 0 launched 30° above 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 an(tj jm4m0c:gx gle 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 y)ve6rqlt*dxpzy( n2/ j v f9yr1r; -othe horizontal with a speed of 30 m/s . How much time passes before the tz pnl 2re6fry- *dyvj q v9rx(o;)1y/position of the projectile makes an angle of 20° above the horizontal from the original launch point?

  14.40: A small 1.35-gram mass is launched from the top of a clif jv0c6 pqo;-vgf at an angle of-gv o6c;q pjv0 $15.9^{\circ}$ 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)