A person throws a 1 kg ball at a wall with a speed of 30.0 m/s....
A person throws a 1 kg ball at a wall with a speed of 30.0 m/s. The ball rebounds off the wall with exactly the same speed it struck with. Another person throws a 1 kg putty ball at the wall, also at 30 m/s. The putty, however, sticks to the wall and does not bounce off. a. Calculate the impulse delivered by the wall to the ball, including direction. b. Calculate the impulse delivered by the wall to the putty, including direction. c. Why are the two values different?
Homework Answers
To make a bounce pass, a player throws a 0.60 kg basketball toward the floor. The...
To make a bounce pass, a player throws a 0.60 kg basketball toward the floor. The ball hits the floor with a speed of 6.5 m/s at an angle of 82 degrees from the vertical. If the ball rebounds with the same speed and angle, what was the impulse delivered to it by the floor?
I'm not sure what I'm doing wrong... A pitcher throws a 0.200 kg ball so that its speed is 18.0 m/s and angle is 40.0° below the horizontal when a player bats the ball directly toward the pit...
I'm not sure what I'm doing wrong...
A pitcher throws a 0.200 kg ball so that its speed is 18.0 m/s and angle is 40.0° below the horizontal when a player bats the ball directly toward the pitcher with velocity 46.0 m/s at 30.0° above the horizontal. Assume ti to be along the line from the batter to the pitcher and +j to be the upward vertical direction. (Express your answers in vector form.) (a) Determine the impulse (in N...
A 49.5-g Super Ball traveling at 30.0 m/s bounces off a brick wall and rebounds at...
A 49.5-g Super Ball traveling at 30.0 m/s bounces off a brick wall and rebounds at 21.5 m/s. A high-speed camera records this event. If the ball is in contact with the wall for 4.75 ms, what is the magnitude of the average acceleration of the ball during this time interval? Average acceleration is the change in velocity divided by the time interval. m/s2
A tennis ball of mass m = 0.057 kg and speed v = 18 m/s strikes...
A tennis ball of mass m = 0.057 kg and speed v = 18 m/s strikes a wall at a 45∘ angle and rebounds with the same speed at 45∘ What is the magnitude of the impulse given to the ball?
A tennis ball of mass m = 0.057 kg and speed U 26 m/s strikes a...
A tennis ball of mass m = 0.057 kg and speed U 26 m/s strikes a wall at a 45° angle and rebounds with the same speed at 45. (Figure 1) Part A What is the magnitude of the impulse given to the ball? Express your answer to two significant figures and include the appropriate units. LIMA • • Ga Fat- 1.5 kg Submit Previous Answers Request Answer Figure 1 of 1 X Incorrect; Try Again: 5 attempts remaining Part...
A 250 g ball with a speed of 5.0 m/s strikes a vertical wall at an...
A 250 g ball with a speed of 5.0 m/s strikes a vertical wall at an angle of 30° to the surface and rebounds at the same angle with the same speed.. The ball is in contact with the wall for 10 ms. What is the impulse on the ball? Choose correct answers: 1.25 N s 2.5 N s 4.33 N s 5.0 N s
Need Help?Read 9.。)-12 points SerCP9 6P027 wi A 69.0-kg person throws a 0.0420-kg snowball forward with...
Need Help?Read 9.。)-12 points SerCP9 6P027 wi A 69.0-kg person throws a 0.0420-kg snowball forward with a ground speed of 31.0 m/s. A second person, with a mass of 55.0 kg, catches the snowball. Both people are on skates. The first person is initially moving forward with a speed of 2.00 m/s, and the second person is initially at rest. What are the velocities of the two people after the snowball is exchanged? Disregard the friction between the skates and...
A 0.200 kg ball hits a wall with a velocity of (7.90 m/s )i + (5.30...
A 0.200 kg ball hits a wall with a velocity of (7.90 m/s )i + (5.30 m/s )j + (4.00 m/s )k . It rebounds from the wall with a velocity of (2.20 m/s)i + (2.50 m/s)j - (5.50 m/s)k In unit-vector notation, what are (a) the change in the ball's momentum, (b) the impulse on the ball, and (c) the impulse on the wall? (a) Number (b) Number (c) Number
23.) A 50.0-g Super Ball traveling at 30.0 m/s bounces off a brick wall and rebounds...
23.) A 50.0-g Super Ball traveling at 30.0 m/s bounces off a brick wall and rebounds at 18.0 m/s. A high-speed camera records this event. If the ball is in contact with the wall for 4.10 ms, what is the magnitude of the average acceleration of the ball during this time interval? m/s2 24.) An artillery shell is fired with an initial velocity of 300 m/s at 54.5° above the horizontal. To clear an avalanche, it explodes on a mountainside...
A ball with an initial velocity of 11.5 m/s and mass 1.9 kg moves at an angle 65.5° above the horizontal.
A ball with an initial velocity of 11.5 m/s and mass 1.9 kg moves at an angle 65.5° above the horizontal. The ball hits a vertical wall and bounces off so that it is moving 65.5° above the horizontal, moving in the opposite direction with the same speed. See the figure. What was the magnitude of the impulse delivered by the wall, in kilogram meters per second?
I'm not sure what I'm doing wrong...
A pitcher throws a 0.200 kg ball so that its speed is 18.0 m/s and angle is 40.0° below the horizontal when a player bats the ball directly toward the pitcher with velocity 46.0 m/s at 30.0° above the horizontal. Assume ti to be along the line from the batter to the pitcher and +j to be the upward vertical direction. (Express your answers in vector form.) (a) Determine the impulse (in N...
A tennis ball of mass m = 0.057 kg and speed U 26 m/s strikes a wall at a 45° angle and rebounds with the same speed at 45. (Figure 1) Part A What is the magnitude of the impulse given to the ball? Express your answer to two significant figures and include the appropriate units. LIMA • • Ga Fat- 1.5 kg Submit Previous Answers Request Answer Figure 1 of 1 X Incorrect; Try Again: 5 attempts remaining Part...
Need Help?Read 9.。)-12 points SerCP9 6P027 wi A 69.0-kg person throws a 0.0420-kg snowball forward with a ground speed of 31.0 m/s. A second person, with a mass of 55.0 kg, catches the snowball. Both people are on skates. The first person is initially moving forward with a speed of 2.00 m/s, and the second person is initially at rest. What are the velocities of the two people after the snowball is exchanged? Disregard the friction between the skates and...
A 0.200 kg ball hits a wall with a velocity of (7.90 m/s )i + (5.30 m/s )j + (4.00 m/s )k . It rebounds from the wall with a velocity of (2.20 m/s)i + (2.50 m/s)j - (5.50 m/s)k In unit-vector notation, what are (a) the change in the ball's momentum, (b) the impulse on the ball, and (c) the impulse on the wall? (a) Number (b) Number (c) Number
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