4. A 10 kg box is dropped from a height of 50m. Just before it hits...
4. A 10 kg box is dropped from a height of 50m. Just before it hits the ground it is clocked to have a speed of 30m/s! Was energy conserved in this situation? If not, how much work was done by non-conservative forces?
Homework Answers
energy is not conserved and
work by nonconservative forces is 500 jouleAdd Answer to:
4. A 10 kg box is dropped from a height of 50m. Just before it
hits...
A basketball (m = 0.60 kg) is dropped from rest. Just before striking the floor, the...
A basketball (m = 0.60 kg) is dropped from rest. Just before striking the floor, the magnitude of the basketball's momentum is 3.1 kg-m/s. What is the magnitude of the ball's velocity, just before hitting the floor? | 1 a. 2.3 m/s (2b. 3.2 m/s (3) c. 5.2 m/s 4 d. 10 m/s © e. 27 m/s A basketball (m = 0.60 kg) is dropped from rest. Just before striking the floor, the magnitude of the basketball's momentum is 3.1...
A 0.80 kg basketball is dropped from a height of 2 meters. It hits the ground...
A 0.80 kg basketball is dropped from a height of 2 meters. It hits the ground and comes back up to a maximum height of 1.6 meters. a. How much impulse was applied to the ball by the ground?
A 0.10-kg ball is dropped from a height of 10 m and rebounds to a height...
A 0.10-kg ball is dropped from a height of 10 m and rebounds to a height of 8.0 m. a. Is energy conserved in the ball? b. If not, how much energy was lost, and what happened to it?
please show work! 9. A 2-kg ball is dropped out of a w is dropped out of a window from a height of 12 meters (Point...
please show work!
9. A 2-kg ball is dropped out of a w is dropped out of a window from a height of 12 meters (Point A). It hits the grow and bounces back up to a height of 8 meters above the ground (Point). a. What is the potential energy of the ball at points A and C b. What is the velocity of the ball just before and just after it hits the ground (points B and B')?...
An object with the mass of .1 kg was dropped from a cliff 200 m high....
An object with the mass of .1 kg was dropped from a cliff 200 m high. Immediately before hitting the ground, it was clocked to travel with the speed of 40 m/s. Calculate how much energy was dissipated by the air drag.
1 Warm-Up Questions 1 A block of mass m = 3 kg is dropped from the...
1 Warm-Up Questions 1 A block of mass m = 3 kg is dropped from the top of a half-pipe (half-circle) of radius R = 2 m starting from rest. The surface of the incline does have friction. If the block comes to rest at half of its initial height, how much work was done by friction? Work: 2 Initially, a ball of mass 0.4 kg is compressed by a spring, with spring constant k = 980 N/m, by a...
Two objects are dropped simultaneously from an initial height of 100m, with an initial velocity of...
Two objects are dropped simultaneously from an initial height of 100m, with an initial velocity of zero. They fall straight down. For mass 1, you can ignore air drag. For mass 2, air drag DOES affect the motion. Here is the position vs. time for both objects: 100 90 80 y 100-0.1164't-4.795*t40.1283*t3 70 60 mass 1: no air drag a mass 2: with air drag 40 30 y-100-1/2 9.8*t2.. 20 10 time (s) 1) Calculate the kinetic energy of mass...
please show work! 9. A 2-kg ball is dropped out of a w is dropped out...
please show work!
9. A 2-kg ball is dropped out of a w is dropped out of a window from a height of 12 meters (Point A). It hits the grow and bounces back up to a height of 8 meters above the ground (Point). a. What is the potential energy of the ball at points A and C b. What is the velocity of the ball just before and just after it hits the ground (points B and B')?...
A 170 gram ball is dropped from rest off of a cliff. the ball then drops...
A 170 gram ball is dropped from rest off of a cliff. the ball then drops straight down to the ground, 19m below. if the speed of the ball just before it hits the ground is 8 m/s, how much work is done to the ball by the fore of air resistance as it falls?
A 0.5 kg brick is dropped from a height of 8 m. It hits the ground...
A 0.5 kg brick is dropped from a height of 8 m. It hits the ground and comes to rest. (a) What is the magnitude of the impulse exerted by the ground on the brick? _____ N
A basketball (m = 0.60 kg) is dropped from rest. Just before striking the floor, the magnitude of the basketball's momentum is 3.1 kg-m/s. What is the magnitude of the ball's velocity, just before hitting the floor? | 1 a. 2.3 m/s (2b. 3.2 m/s (3) c. 5.2 m/s 4 d. 10 m/s © e. 27 m/s A basketball (m = 0.60 kg) is dropped from rest. Just before striking the floor, the magnitude of the basketball's momentum is 3.1...
please show work!
9. A 2-kg ball is dropped out of a w is dropped out of a window from a height of 12 meters (Point A). It hits the grow and bounces back up to a height of 8 meters above the ground (Point). a. What is the potential energy of the ball at points A and C b. What is the velocity of the ball just before and just after it hits the ground (points B and B')?...
1 Warm-Up Questions 1 A block of mass m = 3 kg is dropped from the top of a half-pipe (half-circle) of radius R = 2 m starting from rest. The surface of the incline does have friction. If the block comes to rest at half of its initial height, how much work was done by friction? Work: 2 Initially, a ball of mass 0.4 kg is compressed by a spring, with spring constant k = 980 N/m, by a...
Two objects are dropped simultaneously from an initial height of 100m, with an initial velocity of zero. They fall straight down. For mass 1, you can ignore air drag. For mass 2, air drag DOES affect the motion. Here is the position vs. time for both objects: 100 90 80 y 100-0.1164't-4.795*t40.1283*t3 70 60 mass 1: no air drag a mass 2: with air drag 40 30 y-100-1/2 9.8*t2.. 20 10 time (s) 1) Calculate the kinetic energy of mass...
please show work!
9. A 2-kg ball is dropped out of a w is dropped out of a window from a height of 12 meters (Point A). It hits the grow and bounces back up to a height of 8 meters above the ground (Point). a. What is the potential energy of the ball at points A and C b. What is the velocity of the ball just before and just after it hits the ground (points B and B')?...
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