A 0.143 kg baseball, thrown with a speed of 44.6 m/s, is hit straight back at the pitcher with a speed of 53.0 m/s. (a) What is the magnitude of the impulse delivered by the bat to the baseball? Momentum is a vector. When the baseball changes direction, the direction of the momentum changes, too. Make sure you take this into account when you find the change in momentum. In other words, one of the momenta should be negative, and the other should be positive. kg · m/s (b) Find the magnitude of the average force exerted by the bat on the ball if the two are in contact for 1.92 x 10-3 s. S. kN

A racquetball of mass 0.860 kg is released from rest from a height of 1.25 m. It rebounds from the floor to reach a height of 0.785 m. What impulse was applied to the ball by the floor? (You may safely ignore air resistance. Enter the magnitude in kg · m/s, and select the direction from the given options.) Find Magnitude

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A(n) 0.56 kg softball is pitched at a speed of12 m/s. The batter hits it back directly at thepitcher at a speed of 28 m/s. The bat acts onthe ball for 0.017 s.What is the magnitude of the impulse imparted by the bat to the ball?Answer in units of N · s. What is the magnitude of the average forceexerted by the bat on the ball?Answer in units of N.

Model rocket engines are rated by the impulse that they deliver when they fire. A particular engine is rated to deliver an impulse of 3.5 kg ⋅ m/s. The engine powers a 120 g rocket, including the mass of the engine. What is the final speed of the rocket once the engine has fired? (Ignore the change in mass as the engine fires and ignore the weight force during the short duration firing of the engine.)

A 1.2 kg ball drops vertically onto a floor, hitting with a speed of 25 m/s. It rebounds with an initial speed of 10 m/s. a) What impulse acts on the ball during the contact? b) If the ball is in contact with the floor for 0.020 s, what is the magnitude of the average force on the floor from the ball? c) why is 25m/s "negative" ? why is it considered the initial velocity yet it will be considered negative?

A .75 kg wagon is moving to the left  in the  negative X direction with a speed of 1.0m/s when it experiences the force in the picture. what's the impulse delivered to the cart? and what is the speed and direction after the force ends?

Sven hits a baseball m= 0.15 kg. He applies an average force of 52 N. The ball had an initial velocity of 37.5 m/s to the right and a final velocity of 43 m/s to the left as viewed by the fans in the stands.  (A): What is the impulse delivered by Sven's bat to the baseball? (Assume to the right as viewed by the fan is positive. Indicate the direction with the sign of your answer.) ____ kg* m/s (B): How long is his bat in contact with the ball? _____ sec

A baseball player pitches a fastball toward home plate at a speed of 41.0 m/s. The batter swings, connects with the ball of mass 335 g, and hits it so that the ball leaves the bat with a speed of 37.0 m/s. Assume that the ball is moving horizontally just before and just after the collision with the bat. (a) What is the impulse delivered to the ball by the bat? Enter a positive value if the impulse is in the direction the bat pushes the ball and  enter a negative value if the impulse is in the opposite direction the bat pushes the ball. ____kg·m/s  (b) If the bat and ball are in contact for 3.00 ms, what is the magnitude of the average force exerted on the ball by the bat? ____kN

A 0.279-kg volleyball approaches a player horizontally with a speed of 12.4 m/s. The player strikes the ball with her fist and causes the ball to move in the opposite direction with a speed of 21.1 m/s. (a) What impulse is delivered to the ball by the player? (Take the direction of final velocity to be the positive direction. Indicate the direction with the sign of your answer.) (b) If the player's fist is in contact with the ball for 0.0600 s, find the magnitude of the average force exerted on the player's fist.