A base ball pitched (m=145g) at 28.0 m/s collide a bat. It pops straight up to a height of 42m. If the contact time between the bat and ball is 1 ms, calculate the average force between the ball and bat during contact

A 0.25-kg ball, initially at reston a tee, is hit with a bat in the x-direction while 1.00 meter above the ground. If the ball hits the ground 20 meters away and was in contact with the bat for 0.10-s, what average force was exerted on the ball during the contact time?   Answer: 111 N

A 4.10-kg steel ball strikes a wall with a speed of 11.0 m/s at an angle of ? = 60.0° with the surface. It bounces off with the same speed and angle (see figure below). If the ball is in contact with the wall for 0.200 s, what is the average force exerted by the wall on the ball? (Assume right and up are the positive directions.) Fx =   Fy =

he figure shows an approximate plot of force magnitude F versus time t during the collision of a 56 g Superball with a wall. The initial elocity of the ball is 35 m/s perpendicular to the wall, in the negative direction of an x axis. It rebounds directly back with pproximately the same speed, also perpendicular to the wall. What is Fmax, the maximum magnitude of the force on the ball from the all during the collision? Number i .98 Units N F 9 t(ms) b

A block of mass m= 5.00 kg is reased from point A and slides dows the frictionless track shown in the figure. calculate the speed of the block at piont B and C. g= 9.8m/s2

If balls A and B have an equal mass of 2kg, ball B is initially at rest and the coefficient of restitution between the balls is e=0.85, find the speed of balls A and B right after impact.

A cue ball traveling at 6.57 m/s makes a glancing, elastic collision with a target ball of equal mass that is initially at rest. The cue ball is deflected so that it makes an angle of 30.0° with its original direction of travel. (a) Find the angle between the velocity vectors of the two balls after the collision.   (b) Find the speed of each ball after the collision.

A 375 gram basketball is bounced off of a wooden board, as shown below. It is moving straight down at a speed of 4.75 m/s just before hitting the board, and it is moving with a speed of 3.75 m/s at an angle of 27.5 degrees above the horizontal just after. The ball is in contact with the board for a total of 68.5 milliseconds (ms). A)Find the average force that the board exerts on the ball during the bounce. Give the magnitude of the force in units of Newtons. Give the direction of the force as an angle from the x-axis, in degrees.  B) How much kinetic energy is lost as a result of the ball hitting the board? Give your answer in Joule

A stationary golf ball (with a mass of 0.125kg) is struck by a golf club with an average force of 417N.  The ball and club are in contact for approximately 0.013 seconds.  Determine the velocity of the ball when it leaves contact with the club.  (Report your answer in m/s, but only enter the numerical value.)

One hazard of space travel is debris left by previous missions. There are several thousand objects orbiting Earth that are large enough to be detected by radar, but there are far greater numbers of very small objects, such as flakes of paint. Calculate the force exerted by a 0.100 mg chip of paint that strikes a spacecraft window at a relative speed of 4.00 × 10³ m/s, given the collision lasts 6.00 x 10-8 s.