A force in the negative direction of an x axis is applied for 32 ms to a 0.57 kg ball initially moving at 23 m/s in the positive direction of the axis. The force varies in magnitude, and the impulse has magnitude 46.0 N s. (a) What is the ball's velocity (including sign for direction) just after the force is applied? (b) What is the average magnitude of the force on the ball?

A girl on a bicycle uses 25 N of force to speed up from 2.0 m/s to 4.0 m/s in 2.0 seconds. The positive direction is the direction of motion. What  is the impulse the bicyclist applies to speed up?

A 2.10 kg "particle" traveling with velocity = (3.7 m/s )i collides with a 4.70 kg "particle" traveling with velocity V = (1.7 m/s )j. The collision connects the two particles. What then is their velocity in (a) unit-vector notation and as (b) a magnitude and (c) a positive (counterclockwise) angle measured from the +x axis? (a) Number i+ į Units (b) Number Units (c) Number Units

Problem 66: A rubber ball bounces off a vertical brick wall. If the 0.2 kg ball hits the wall horizontally at 10 m/s but bounces off at 6 m/s and an angle of 30 degrees above the horizontal then what was the impulse delivered to the ball by the wall? If the bouncing happened over a duration of 0.01 s then what was the magnitude of the force of the wall on the ball? (assume the force was constant)

A golf ball m = 0.11 kg strikes a vertical concrete wall elastically with a horizontal velocity of v = 13 m/s.  Write an expression for the magnitude of the impulse I experienced by the ball. If the ball was in contact with the wall for t = .1s, what is the magnitude of the force F the ball experienced in N? If the ball rebounds with only half the velocity it comes in with, what is the magnitude of the impulse in kg m/s? Determine the magnitude of the change in kinetic energy in the above situation. Give your answer in joules.

A basketball of mass 1.25 kg travelling with an initial speed of 8 m/sec bounces off of a backboard and comes back in the opposite direction with a speed of 7 m/sec. The ball is in contact with the backboard for 0.1 sec.  (a)  What is the impulse on the ball? (b)  What is the force exerted on the ball?

A ball falls from height of 20.0 m, hits the floor, and rebounds vertically upward to height of 15.0 m. Assume that m ball = 0.385 kg. (a) What is the impulse (in kg. m/s) delivered to the ball by the floor? magnitude x direction 979.1 Assume the only impulse delivered to the ball is from the floor, which equals the change in momentum of the ball. Find the initial and final speeds of the ball using conservation of mechanical energy, and calculate Ap noting that all the motion is in the y-direction. kg. m/s up ✓✓ (b) If the ball is in contact with the floor for 0.0300 seconds, what is the average force (in N) the floor exerts on the ball? magnitude 19.223 x Use the impulse-momentum theorem and the result from part (a) to find the force, given that the contact time interval is 0.0300 s. N up direction ✓✓

A(n) 0.5 kg softball is pitched at a speed of 17 m/s. The batter hits it back directly at the pitcher at a speed of 25 m/s. The bat acts on the ball for 0.012s. 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 force exerted by the bat on the ball?Answer in units of N.

You have two vectors: A = 7.271 +3ĵ and B = 4î - 0.95ĵ+ 12k. If vector A represents an initial momentum vector, and vector B represents a final momentum vector, what is the y component of the impulse? If you think your answer is negative, do include the negative sign with your result.

Two clay balls collide and stick. Ball 1 has a mass of 3 kg and an initial velocity of 10 m/s in the positive x direction. Ball 2 has a mass of 10 kg and an initial velocity of 12 m/s in the negative x direction. What is the final velocity of the combined mass?