force Fi acts for a time interval of 3.40 ms. For what time interval does 2 act!
ID: 1583449 • Letter: F
Question
force Fi acts for a time interval of 3.40 ms. For what time interval does 2 act!l 2. A flying saucer is moving in deep outer space with a momentum of magnitude of 5.78 x 10 kg m/s. A retrorocket is fired to slow it down. The rocket applies a force of a magnitude of 1.34 x 10° N to the flying saucer for a period of 10.5 s. The force is directed opposite to the saucer's motion. Determine the momentum of the saucer after the retrorocket ceases to fire. (4.37E+7 kg m/s) 3. Figure shows an approximate plot of force F versus time t during the collision of a 58-g ball with a wall. The initial velocity of the ball is perpendicular to the wall; the ball 2 rebounds directly back with approximately the same speed also perpendicular to the wall. If the maximum magnitude of the force on the ball from the wall during the collision is 990 N, find the initial velocity of the ball. (34 m/s) t is) mar 4. A policeman (mass 83.5 kg) jumps straight down from a ship into a lifeboat (mass- 284 kg) in which a criminal is fleeing. The horizontal velocity of the lifeboat after the policeman lands is +2.35 m/s. What is the initial horizontal velocity of the lifeboat, before the policeman jumps? (3.04 m/s) 5. A 4.90-g bullet moving at 578 m/s strikes a 885-g wooden block at rest on a frictionless surface. The bullet emerges, traveling in the same direction with its speed reduced to 379 m/s. (a) What is the resulting speed of the block? (b) What is the impulse transferred from the bullet to the block? (e) 1.10 m/s:(b) 0.975 N ) table, collides head-on with a stationary 8.20-kg ball. Find the final velocities of (a) the 3.80-k uia (0) Eind the final velocityExplanation / Answer
2) final momentum = initial momentum - impulse against it
= 5.78e7 - 1.34e6*10.5
= 4.37E7 kgm/s answer
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.