07.14: An object moves ,,kibd5 f2nb+np2f go 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 k ,ip+2f2ngnb f,5dbothat the object takes? A. A straight line path partly Eastward, partly Northward

  07.15: Two identical mass objects are cjbdlrh ycio3)5a u8d:,9ha /launched with the same speed from the same starting locationj3ad,h5 yu 8rc lhoa/9cdb: i). 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 thj-3 5-dmji jl4tlo s)pe same starting location. Object 1 is launched at an a5)ljj-4 ijlp o-s3dtmngle 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 r(ne1: sjvfunf:8x i 7the center of a target 20 m away. The arrow hits 0.050 m below the center of the target. Neglecjvfx8ue:(r7 nsni: 1f ting air resistance, what was the initial speed of the arrow?

  03.05: Two arrows are launchedkt/i0 ypm + 7cgl(ctlec9vdl) 7tn l.0 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 grmnk97i(y elgcl+t/vtt.c )0plld0 7c ound. Which arrow arrives first?

  95.19: A baseball is thrown horizontally from a cliff. A tjb:3lu1 s:mbt the same instant, a bowling ball is dropped from the same height. Assuming air resistance can be ignored, which of the followinm1 t lb3sujb::g statements is correct?

  96.08: A ball is rolled off the edq da*ptd i, at5h2,j:yge of a horizontal table. The ball has an initial ia,pdd :25jatq*t,yh 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 uj53 cwn v(,bzdq5oc a2pward with an initial velocity v and an initial kine23cjnqv cdb5wz5o( a, tic 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 droppedipbjth * +,l;gk+4o ng from an airplane to a herd of cattle below. Assume the airplane flew horizontally at an altitude,+ntggo+lbh; jip*4 k 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 had to be dropped from dq) o u72)dbngan airplane to a herd ofd2bgd q 7))uon 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 dyaw rnyz4frgm i84:) sz3-ws 8own field. Neglecting air resistance, which of the4m if wzyr a-nswr8 :4gy8z3s) following statements would be INCORRECT when the football reaches its highest point.

  03.10: A ball is thrown into the air at an ang9g:p 2-zuwgadn/ha pk3n/ a o2o-*aurle $\theta$ 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. Ink) d2 3lc0exjix 95pxf traveling first 5m horizontally, the arrow falls 0.2 m. In traveling the next 5 m horizontally it will fall a a2x0di5p e9cxfjkx3 l )dditional

  06.04: An arrow is shot from a bow at an angle zi97hzm:luu7u tys 1. 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 go 4ix4*kh+ca iround landed 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 ahocix4k+ a*i 4t 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 thrown at an 0c fvjw.z,8hhq,.j sgl:s bu+ 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 cliff w 3rh k/q+yq+ *nmgrqj5ith 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 th036bcgs)xwa :a*,0lex ltoep rown horizontally from the top of a building is 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 labcepxl *l0:soa,36b) 0 eatxgweled P on the trajectory?

  02.41: A person throws a small object from thegd9rdai - 4m bon4,wg7 top of a building at an angle of 4r -nwddbm,o49ggia 7$30^{\circ}$ 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 angl,2z t+stquj8antrn1gf45tm ;e 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 b pkl/ux0.qo,horizontal from a height of 10.0lo,puxb 0./ qk 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 it reaches the ground? Ignore air resistance.

  17.32: A projectile is launched at an angle of 40° above thxyj: 0csrb)* +tl5k1t0 ul zxke horizontal with a speed of 30 m/s . How much time passes before the position of the projectile makes an angle of 20° above the horizontal from the original launcxrbks*0x5 1clz ut jl+tk0):yh point?

  14.40: A small 1.35-gram mass is launched from t4)x2+d5 u5z qt)mmkc3oypf o 1ws2sylhe top of a cliff at an angle of p z)yxclwdo +mo)q4ytk1m2 5532sufs$15.9^{\circ}$ 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)