A 2.5 kg block, initially moving due east at 6 m/s, is acted upon by an impulse having magnitude 15 Ns and direction due west. What is the final total momentum of the system?
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A: Dear student The impulse is defined by change in momentum. Also the impulse is given by : J = F∆t =…
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- A cruise ship with a mass of 1.83 x 10' kg strikes a pier at a speed of 0.652 m/s. It comes to rest 4.94 m later, damaging the ship, the pier, and the tugboat captain's finances. Calculate the average force (in N) exerted on the pier using the concept of impulse. (Hint: First calculate the time it took to bring the ship to rest. Assume the ship moves in the positive direction. Indicate the direction with the sign of your answer.)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.A 40.0-g bullet moving at a 250.0 m/s passes through a 2.40 cm thick sheet of foam plastic and emerges with a speed of 90.0 m/s. Assuming that the speed change takes place uniformly, calculate the average force that impeded the bullet's motion through the plastic. (Hint: You can apply the impulse-momentum theorem to solve the problem.)
- A 0.263-kg volleyball approaches a player horizontally with a speed of 12.8 m/s. The player strikes the ball with her fist and causes the ball to move in the opposite direction with a speed of 21.7 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.) kg • m/s (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.A 0.060 kg ball, initially moving at a speed of 10.0 m/s, is struck by a bat causing it to rebound in the opposite direction at a speed of 15.0 m/s. Calculate the magnitude of the impulse on the ball in the collision. Recall the impulse-momentum theorem.A 1.0 kg ball drops vertically onto a floor, hitting with a speed (just before hitting floor) of 20 m/s. It rebounds with a speed (just after leaving floor) of 15 m/s. (a) What is the magnitude of the impulse that acts on the ball during the contact?(b) If the ball is in contact with the floor for 0.040 s, what is the magnitude of the average force exerted on the floor?
- During a neighborhood baseball game in a vacant lot, a particularly wild hit sends a 0.149 kg baseball crashing through the pane of a second-floor window in a nearby building. The ball strikes the glass at 14.1 m/s, shatters the glass as it passes through, and leaves the window at 11.3 m/s with no change of direction. Calculate the magnitude of this impulse (a positive number). The ball is in contact with the glass for 0.0104 s as it passes through. Find the magnitude of the average force of the glass on the ball (a positive number).A professional golfer is examining a video of a practice swing. The high-speed footage shows that his club is in contact with the ball (which was initially at rest on the tee) for only Ar=0.571 ms, and the radar gun clocks the speed of the ball as = 176 mph after it comes off the club. The golf ball has a mass of my = 45.9 g. What is the magnitude of the impulse imparted to the ball by the club? magnitude of the impulse: What is the magnitude of the average force of contact between the club and the ball? magnitude of the average force of contact: kg m NYou have two vectors: A = 7.27î + 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 z component of the impulse?
- In the overhead view of the figure, a 460 g ball with a speed v of 4.5 m/s strikes a wall at an angle 0 of 20° and then rebounds with the same speed and angle. It is in contact with the wall for 14 ms. In unit-vector notation, what are (a) the impulse on the ball from the wall and (b) the average force on the wall from the ball? (a) Number i (b) Number i+ т i+ i i ·X 0 j Units j Units >You have two vectors: A = 7.27î + 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 x component of the impulse?A 1-oz bullet is traveling with a velocity of 1400 ft/s when it impacts and becomes embedded in a 5-lb wooden block. The block can move vertically without friction. Determine (a) the velocity of the bullet and block immediately after the impact, (b) the horizontal and vertical components of the impulse exerted by the block on the bullet.