07.14: An object moves to the East across a frictionless surface with tsgc rd u46ojk / 90fo.y)q4w/:uycjtconstant speed. A person then applies a constant force to the North on the object. What is the resulting path that the object takesgskttu:d.of6y cqr4 9oj/0 c)y 4ju/w? A. A straight line path partly Eastward, partly Northward

  07.15: Two identical mass objects are launched with the same speed frh p8afxe jdeap yqb(x+q63-63m-jt7 bom the same starting lo e3d x 6+-aje3p-q8pf6h mt7a(yb qjxbcation. 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 s ohpm8 olh:/(4pstu6rame starting location. Object otp/ h:rulp6h4 8o(ms 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, diri+eh,m/8w3e,e myicap v1dnh 8 lg)t( ectly at the center of a target 20 m away. The arrow hits 0.050 m below thentc)+we3ii8y1(, g phelamm8d, e/v h 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 the sa3. 0vfkafaax 3lh;f1i me speed. A at an angle greater than 45 degrees, and arrow B at an angle less than 45 degrees. Both land at the same spolxa v3a0.ha1ik ff3;ft on the ground. Which arrow arrives first?

  95.19: A baseball is q go7 wj,nis+/thrown 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 following statements is correct?w7 n,iq+j/gs o

  96.08: A ball is rolled off the edge of a horizontal table. Tqmyxm/ h 1 /m:*wy4bdv l2lzc yl+:ju4he ball has an initia/lj+ m2mlly1 u4 y wbdy q:m*hx4c/z:vl 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 with an initial velocit4lrzd2x a7d apfg7*3a kt ;9lvy v and an initial kirapdlt l k77 2;z49x *fagavd3netic 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 dropv(qx ht. 88-p bxsbkk8ped 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 hahxs bb(-8kt 8kpq8v.x ppen to their distance of separation?

  00.38: During a recent wint8kem8o+tdiv7y/j rw :; o9y shd; dp3ier storm, 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 dropped one bail of hay every two seconds. It v9 e;wkd:d7+oir/doysj p8h 8 tmy 3;iis 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 dista0a5g xwe((dyj;kt- djnce of 50 yards down field. Neglecting air resistance, which of the following statements would be INCORRECT when the football reaches its highest poin0dygj-xa5ew( tdk ;( jt.

  03.10: A ball is thrown into the air4+71bvg sv ll(+y61ydfocxd f-wjik1 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 towar-v0y5og6 ldqfb:6tfi5 c 7knmd a target 20 m away. In traveling first 5m horizontally, the a fomq-i6n7k d 5l bvytcf605g:rrow falls 0.2 m. In traveling the next 5 m horizontally it will fall a additional

  06.04: An arrow is shot frojmka;oo b .ymw pu61+)m 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 groubq7o9+:b 2. )cvhbg;rpp bi jynd landed a horizontal distance of 120.0 m from its launch po9q pb2.;bc7 iypr) b+g jh:vboint. 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 throw7gkn3yw 3si8m zq 3f8wn 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 the top of1 drut(ql1dk3 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 thrownr2j +e:/ nuxvrk6o2rb horizontally from the top of a building is shown as the dashed line in the figure. Which sets of arrows besv2xr2r+u j /rebko: 6nt 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 at an:i; ix2ad svw2 angle of :2iv ; idas2wx$30^{\circ}$ 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 atcp 5 hpuec2-gu6sov.5 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° + * e j.7+ynfsxr gy,m+a+ztofabove 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 hori + txgf +n+r,.ej* z+om7asyyfzontal 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 horizue *jjv 0 *,qksp +b.pejd)4koontal with a speed of 30 m/s . How much time passes before the position of the projectile makes an angle of 20° above the hori 0 dkqp *) usj,p*4.jb+ovkejezontal from the original launch point?

  14.40: A small 1.35-gram mass is5ec)5+s 0 hftqhqpnd4 launched from the top of a cliff at an angle ofehc 4pd+)n5q5fq s0th $15.9^{\circ}$ 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)