07.14: An object moves to the East across a frictionless surface witovdp:j7:uv :/ r( yuydrz3nb. h 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 pathury: .pov:z /7ddyu bnvjr(:3 partly Eastward, partly Northward

  07.15: Two identical mass objects are launched with the same speed from the samscji h,f)bvoz3n z-s n6c( 2) .ujxll*e starting location. Object 1 is launched at an angleb-.nvh(u)l)*l2nczs3fj6sz cij, o x 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 masoh m+v(1im-t ms objects are launched with the same speed from the same starting locat m+m (1ihtvom-ion. 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, directly at the ce(0 :a iq+ 0dewizccg(snter of a target 20 m awc( :d+ 0zg0iaci (eqwsay. The 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 the same s3ygcv:dz4 ut3vzhg j* pe30a;a) v i(apeed. A at an angle greater than 45 degrees, and arrow B at an angle less tdaa:hp3 c*at; ejv3zivg u34 vy)0 z(ghan 45 degrees. Both land at the same spot on the ground. Which arrow arrives first?

  95.19: A baseball is thrown horizontallx wrqun56o+ c7y from a cliff. At the same instant, a bowling ball is dropped from the same height. A cq+uwo5r67xn ssuming air resistance can be ignored, which of the following statements is correct?

  96.08: A ball is rolled off the edge of a horizontal z(icr8 j*x2shw4ios 3pu,+fw table. The ball has an initial(s*fchoj3x ,zr uipww+s84i 2 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 velocdm8gq5 p1m y aedf;26aity v and an initial 6mdg m2 de ;8fa5ya1pqkinetic 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 winbqo :pdw**r7 hj cg h;2le2sbrj6a8-t ter 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 is reaso *rhdqe8;p6a g:2 jsc2owbjbh-7t*l rnable 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*6bce n2rhyj+om.p9 h 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 tw rj 9y*6.eocp2mh+nb ho 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 kickeq ku4m+ iz uk lvt,f5/(0wyc7fd a distance of 50 yards down field. Neglecting air resistance, which of the following statements would be INCORRECT when the football reacy4fvc qwf 5k0m kl,u7ti/u+ (zhes its highest point.

  03.10: A ball is thrown into the air at anthvx*qfr(m v0(+/2clwcgax)xspr / 4 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 horizonv-akw8y( rnn)k,,uh htally toward a target 20 m away. In traveling first 5m hon 8vrh hak)wuk,,-y(n rizontally, the arrow falls 0.2 m. In traveling the next 5 m horizontally it will fall a additional

  06.04: An arrow is shotz/0 uhvrzu:je 6. xox5sxlx 8; from 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 ground landed a hori0uv9 o0a5uf8vcbc 8 hnzontal 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 the same vertical position from which it was launched, what was the launch speed of the projectile? Ignore aif85o80u ucan90 cvbvhr resistance.

  13.14: A small ball is throwfyro;5p1 mxza;un :7wn 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*jwji--i+l7cz f5l um 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 hor lb85wdzi8h7 st1i/h iv( ,vwkbkik)2izontally from the top of a it5k1 2/ b(ii8dvz8s7,wkbkhlhivw )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 labeled P on the trajectory?

  02.41: A person throws a small object from the top of a builzg9ce5 y1 f(ftwetr:2 fdc,nd(y*st .ding at an angle of ,e:1 t.zfyef rd(t5c ncd2g wf y9t(*s$30^{\circ}$ 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 gro4-a0h1vs- xoxfr 4pvwbb0m9f und 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 horizontal from a height o3,u,k.5p(l.s.trtuk ff hf jjf 10.0 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, .hk.j5j lu .t,ruftk(3sfpf ground? Ignore air resistance.

  17.32: A projectile is launched at an angle of 40° above the horizontay u7x;fzr a51bd1sn9 )vr6plpl with a speed of 30 m/s . How much time passes before the position of 9vp1axdrlf; u7y5r 6 ) pnz1bsthe projectile makes an angle of 20° above the horizontal from the original launch point?

  14.40: A small 1.35-zm3)bcug5vm2iif z 3( gram mass is launched from the top of a cliff at an angle ofbmg3cvi3mi)fzu52 z( $15.9^{\circ}$ 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)