07.14: An object moves to the East ffw9ws-vo+ 9vacross a frictionless surface with constant speed. A po wsv99+wf-fv erson then applies a constant force to the North on the object. What is the resulting path that the object takes? A. A straight line path partly Eastward, partly Northward

  07.15: Two identical mav8m gww9/ o9nqss objects are launched with the same speed from the same starting location. Object 1 ig/9 oqmwn8w9 vs 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 k)dn b)xxi90a the same speed from the same starting location. Object 1 is launched at an angle oxbn ad 09)xi)kf $30^{\circ}$ 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 hxr u6x wi// /l0xhrml*orizontally, directly at the center of a target 20 m away. The arrow hits 0.050 m belowx l/h 0r uwr*/m6xx/il the center of the target. Neglecting air resistance, what was the initial speed of the arrow?

  03.05: Two arrows are launched at 4hszf*:qq mp6the same time with the same speed. A at an angle greater than 45 degrees, and arrow B at an angle less than4qpf*zh: 6q ms 45 degrees. Both land at the same spot on the ground. Which arrow arrives first?

  95.19: A baseball is thrown qb9 7sg 2h6csmx5/ffh horizontally from a cliff. At the same instant, a bowling ball is dropped from the same height.hmfx hq962s /s5g7bfc Assuming air resistance can be ignored, which of the following statements is correct?

  96.08: A ball is rolled off the edge of a horck t2zh)u-x g1 d0gaes 4,u)spizontal table. The ball has an initial speedxs 4dhgu1,as)e ptkzuc-)20g $v_0$ 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)t,cbjba,kp0 *:p d/w6tpor sb/m1;mk4 lzp j velocity v and an initial kinetic epj ,w,*ap sb:km/p0 tob /cblpt1 ;z j)mrdk46nergy $E_k$. 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 upnx-/1lb 7 hivtyi )+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/u n p)xyt7hi+/-v1i lbs 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 stow3djirfwx8z.z n1m01 rm, bales of hay had to be dropped from an airplane to a herd of cattle below. Assume the airplane flew horizontally at an altnrfwz10 3d8 z1mx. jwiitude 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 oksqe1 846w v(w,qfa-i9.3wrf rx uivhf 50 yards down field. Neglecting air resistance, which of the following statements would be INCORRECT when the football rv v8( wirr9q61wfaf qiw,eh-x us.k34eaches its highest point.

  03.10: A ball is thrown into the air at an *;pw :x ixzofwlf4p./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 towalcmr; 6hj2 x .ql0nu2rrd a target 20 m away. In traveling first 5m horizontally, the xunrr q2 l06;2.j cmhlarrow falls 0.2 m. In traveling the next 5 m horizontally it will fall a additional

  06.04: An arrow is sa6 /jc4wur , ,fdj:yqf/u5gdchot 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 horizonta-to r9(b(w ygil distance of 120.0 m from iwtbyiro -(g(9 ts 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 air resistance.

  13.14: A small ball ib, ziibe 8ki.4s thrown 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 clife+gpbvzat7k 3g0gy6( 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 8* r7(rbncwejhorizontally from the top of a building is shown as the dashed line in the figure. Which sets of arrows best correspond to the direrjn(w r7*e cb8ctions 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 froa5kx ip9 c2z t30i-iijm the top of a building at an angle of 0pi ia ji3kxc95 zt2i-$30^{\circ}$ 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 theui:kw c k/ch5 8zdbf;) 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 ladt/lv4b+ r cz9unched 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 angle below the horizoncd/9tv+4b lrztal is the object moving when it reaches the ground? Ignore air resistance.

  17.32: A projectile is launchedvygc)kqu47.j gp5h w.f-+ h ds at an angle of 40° above the horizontal with a speed of 30 m/s . How much time passes before the position of the projectile makes an angle of 2+.gc wh7g)s 4dkvh-f yq .p5uj0° above the horizontal from the original launch point?

  14.40: A small 1.35-gram mass is launched from the top of a gko)se1fes s xr) 0x77e8sf2e cliff at an angle of s7xf e f)oe81ee)xsrks 207sg$15.9^{\circ}$ 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)