3. A baseball of mass 145 g is thrown at 100 mph and caught by a catcher's glove. (a) Find the impulse on the ball (in SI units). (b) Assuming the collision time was 40 ms, what was the average force exerted on the ball (in Newtons)? (c) Convert your answer from (b) to units of pounds. Does the answer seem reasonable?
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- The force shown in the force vs. time diagram in the figure below acts on a 2.0-kg object (N) 2 1 4 5 2 3 (a) Find the impulse of the force. N S (b) Find the final velocity of the object if it is initially at rest. m/s (c) Find the final velocity of the object if it is initially moving along the x-axis with a velocity of -1.9 m/s. m/sA 250-g ball is thrown at a wall such that its speed right before the collision is 20 m/s. Just after it rebounds, its speed is 18 m/s. The ball is in contact with the wall for 0.032 s. What is the impulse on the ball? What is the average force acting on the ball? If the ball embedded in the wall, would the impulse and average force stay the same, be larger or be smaller?SpaceX's Falcon Heavy rocket with a mass of 1.42 x 10^6 kg is launched straight upward at 1.8 m/s. The rocket engines provided an average thrust force of 2.28 x 10^6 N for 154 seconds a). What is the impulse provided by the rocket engines? b) What was the change in momentum of the Falcon Heavy rocket? c) What is the weight of the rocket in pounds? d) What is the NET FORCE on the Falcon heavy rocket? e) What is the acceleration of the rocket? f) What was the KE of the rocket at launch?
- A 3.6 kg block moving with a velocity of +4.3 m/s makes an elastic collision with a stationary block of mass 2.5 kg. (a) Use conservation of momentum and the fact that the relative speed of recession equals the relative speed of approach to find the velocity of each block after the collision. I'm having a hard time calculating using the cinservation of momentum, please explain steps.Ball A has a mass of 3 kg and is moving with a velocity of (vA)1 = 9 m/s when it makes a direct collision with ball B, which has a mass of 2.5 kg and is moving with a velocity of (vB)1 = 5 m/s . Suppose that e = 0.7. Neglect the size of the balls. a) Determine the velocity of A just after the collision measured to the right. (vA)2 = ? b) Determine the velocity of B just after the collision measured to the right. (vB)2 = ?The x-component of a force on a 15-g golf ball by a golf club versus time is plotted in the attached figure. a. Find the x-component of the impulse, in newton-seconds, during the following interval: [50 msec, 100 msec] b. Find the change in the x-component of the momentum, in kilogram meters per second, during the following interval: [50 msec, 100 msec]
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