07.14: An object moves to the East across j0:ip3)2 ci1 *h mwbx2wyt mwva frictionless surface with 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 0w 1 2wix vcib:hmyt2)jm*wp3 straight line path partly Eastward, partly Northward

  07.15: Two identical mass objects are launched with the s/avmi+ r6kr h+ame speed from the same starting location. Object 1 ivm/rirk++6 h as 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 same1s487q+m*j:(f 3qm mi fc. cn;k8kwbgfma m qc starting location. q(qqkj.f +mmw88kfa *c msccmg741; f mn3i:b 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 zgk-yz3avrq 5,dk; 2sm0idy., directly at the center of a target 20 m away. The arrow hits 0.050 m below the center of the target. Negz-0zka,dd;3sk .2 yvqriy5 mg lecting air resistance, what was the initial speed of the arrow?

  03.05: Two arrows are launched at the same t3h5odu8lhu v(7j mn s.ime 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 ground. Which arrowj(u.mdohhls58v3 un 7 arrives first?

  95.19: A baseball is thrown horizontall( who edo3ht.*y from a cliff. At the same instant, a bowling ball is dropped from the same height. Assuming *h3e hdwot(o. air resistance can be ignored, which of the following statements is correct?

  96.08: A ball is rolled ol.p9 jt74oagt*8,s/r dykyp off the edge of a horizontal table. The ball has an initialrk/9 ooa ljy p,p*d8.gsytt47 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 vel9mmyxis8 h3 3s4 isei5ocity v and an initial kinetic ey4ex isis9i m3s5 3m8hnergy $E_k$. 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 an air83sh-d drt0irxtqtw0 : )i tm rg*q.;rplane to a herd of cattle below. Assume the airplane flew horizontally at an altitude of 1d*th0:rq r t;rdt3-q. r wi tsmgi0x)880 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 had to be dro * gjo9nc, bz;32nvhaopped 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 resigz32boj*ao ,9 v;h nncstance 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 iy5v(jmhp: g41*d u(bvn(vum resistance, which 5nm(viu* (4yu:(jp gvv1bdhm of the following statements would be INCORRECT when the football reaches its highest point.

  03.10: A ball is thrown into the air at an angle 2qs-irq3 zl0 n$\theta$ 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 u8 j4p:em psq3horizontally toward a target 20 m away. In traveling first 5m horizontally, the arrow falls 0.2 m. In traveling the next 5m :epjuqs834p m horizontally it will fall a additional

  06.04: An arrow is shot from a bow at an an,zfm+3yj ;1wht s4 (v 8huctood 1v9fdgle 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 landed a hor q;ta(xevf sr6,r6(vgizontal distance of 120.0 m from its launch point. The prx v g(r;r6sva ,qt6ef(ojectile 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 thr2ec2b) bb g st/x(,co xbxn/n2own 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 of a clifopd)min(*x 1m f 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 t ,t53rau4 igm,rto, evyl87vz he top of a building is shown as the dashed line in the figure. Which sets of arrows best correspond to thgamvlv 7,45r8ty3t,,re z i oue 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 obf n u.zb:z2 /eep cyzis sy7a7cebdx12u1,)d7ject from the top of a building at an angle of )abexfzzyc /72sdi ds7,2py7:z ue .ne1c1ub$30^{\circ}$ 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 lauy.toj1mqf q1.1 d+fkhnched 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° above the horizm/:my+nniw 8r ontal from a height of 10.0 above the gy/+ nmn:8 imwrround. 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° () -,va9c13cca s/shh:vy+piuayuxeabove the horizontal with a speed of 30 m/s . How much time passes before the position of the project +v9 /:xhaav)ais,3c cpyu(y 1ecs-huile 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 . fqlfc+ kv3h ;k;c*tccliff at an angle off.+hkc*vcct k ;l;f3q $15.9^{\circ}$ 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)