10 .0 kg cart moving horizontally at 8.00 ms a. what is the kinetic energy of...
10 .0 kg cart moving horizontally at 8.00 ms
a. what is the kinetic energy of the car
b. in order to change the cart's speed to 15.0 ms what is the total
work that must be done on the cart
Homework Answers
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10 .0 kg cart moving horizontally at 8.00 ms
a. what is the kinetic energy of...
do all please. 1. A 20 Kg cart moving at 10 m/s collides with a 10...
do
all please.
1. A 20 Kg cart moving at 10 m/s collides with a 10 Kg cart moving at 20 m/ s. The two carts stick to each other after the collision. Calculate the final speed of the carts just after the collision if () They were moving in the same direction direction (i.e. thefaster bumped the slower from behind) (ii) They were moving at 90° respect to each other. (ii) They were moving at 30° respect to each...
A 0.400 kg hammer is moving horizontally at 7.50 m/s when it strikes a nail and...
A 0.400 kg hammer is moving horizontally at 7.50 m/s when it strikes a nail and comes to rest after driving it 1.00 cm into a board. (a) Calculate the duration of the impact. (b) What was the average force exerted on the nail? Additional Materials Reading 12. -12 points OSColPhys1 8.P.002.WA. Two carts mounted on an air track are moving toward one another. Cart 1 has a speed of 0.8 m/s and a mass of 0.53 kg. Cart 2...
10. A 1.00-kg cart moving east at 1.00 m/s and a 0.750-kg cart moving west at...
10. A 1.00-kg cart moving east at 1.00 m/s and a 0.750-kg cart moving west at 1.333 m/s collide without sticking together. After the colli- sion, the 1.00-kg cart moves away at 0.6667 m/s to the west. What change in kinetic energy occurs in the collision? 11. A car's wheel has a moment of inertia of 0.35 kg me about the wheel's axis. If the wheel's radius is 0.289 meters and its mass is 4.50 kg, what is the moment...
A 45 kg cart is pulled along by a rope that applies a 120 N force...
A 45 kg cart is pulled along by a rope that applies a 120 N force at 30 degree. How much work is done by the 120 N force as the cart moves 7 m? If the friction force on the cart is 50 N, how much work is done by the friction force? How much work is done by gravity? What is the net work done on the cart? If the initial speed of the cart was 5 m/s,...
1.A shopper pushes a grocery cart 20.0 m at constant speed on level ground, against a...
1.A shopper pushes a grocery cart 20.0 m at constant speed on level ground, against a 35.0 N frictional force. He pushes in a direction 250 below the horizontal. (a) What is the work done on the cart by friction? (b) What is the work done on the cart by the normal force? (c) What is the work done on the cart by the shopper? (4 pts) 2 Calculate the kinetic energies of (a) a 2000.0-kg automobile moving at 100.0...
The energy of motion is called: Kinetic energy. potential energy, inertial energy. Power. In an inelastic...
The energy of motion is called: Kinetic energy. potential energy, inertial energy. Power. In an inelastic collision: momentum is conserved. kinetic energy is conserved, both (a) and (b). If the velocity of a moving object is doubled and its mass is cut in half, the kinetic energy of the object is; remains the same, doubled quadrupled, cut in half. When the net work done on an object is speed of the object is me on an object is zero; the...
A cart loaded with bricks has a total mass of 22.1 kg and is pulled at...
A cart loaded with bricks has a total mass of 22.1 kg and is pulled at constant speed by a rope. The rope is inclined at 30.1 ◦ above the horizontal and the cart moves 23.9 m on a horizontal floor. The coefficient of kinetic friction between ground and cart is 0.3 . The acceleration of gravity is 9.8 m/s2 . What is the normal force exerted on the cart by the floor? Answer in units of N. b) How...
Two carts mounted on an air track are moving toward one another. Cart 1 has a...
Two carts mounted on an air track are moving toward one another. Cart 1 has a speed of 1.2 m/s and a mass of 0.45 kg. Cart 2 has a mass of 0.62 kg. (a) If the total momentum of the system is to be zero, what is the initial speed of Cart 2 in meters per second? m/s (b) Does it follow that the kinetic energy of the system is also zero since the momentum of the system is...
Two carts mounted on an air track are moving toward one another. Cart 1 has a...
Two carts mounted on an air track are moving toward one another. Cart 1 has a speed of 1.1 m/s and a mass of 0.46 kg. Cart 2 has a mass of 0.74 kg (a) If the total momentum of the system is to be zero, what is the initial speed of Cart 2 in meters per second? m/s (b) Does it follow that the kinetic energy of the system is also zero since the momentum of the system is...
You push a 2 kg shopping mall cart down an aisle (how the heck is “aisle”...
You push a 2 kg shopping mall cart down an aisle (how the heck is “aisle” pronounced “aiyo”). The cart is initially travelling at 5 m/s the moment it left your hand. A) What is the initial kinetic energy of the cart? The cart slowed to a complete stop due to friction. B) What is the final kinetic energy of the cart when it stopped? C) Then, use the work-energy theorem to find the work done by friction. D) If...
do
all please.
1. A 20 Kg cart moving at 10 m/s collides with a 10 Kg cart moving at 20 m/ s. The two carts stick to each other after the collision. Calculate the final speed of the carts just after the collision if () They were moving in the same direction direction (i.e. thefaster bumped the slower from behind) (ii) They were moving at 90° respect to each other. (ii) They were moving at 30° respect to each...
A 0.400 kg hammer is moving horizontally at 7.50 m/s when it strikes a nail and comes to rest after driving it 1.00 cm into a board. (a) Calculate the duration of the impact. (b) What was the average force exerted on the nail? Additional Materials Reading 12. -12 points OSColPhys1 8.P.002.WA. Two carts mounted on an air track are moving toward one another. Cart 1 has a speed of 0.8 m/s and a mass of 0.53 kg. Cart 2...
10. A 1.00-kg cart moving east at 1.00 m/s and a 0.750-kg cart moving west at 1.333 m/s collide without sticking together. After the colli- sion, the 1.00-kg cart moves away at 0.6667 m/s to the west. What change in kinetic energy occurs in the collision? 11. A car's wheel has a moment of inertia of 0.35 kg me about the wheel's axis. If the wheel's radius is 0.289 meters and its mass is 4.50 kg, what is the moment...
A 45 kg cart is pulled along by a rope that applies a 120 N force at 30 degree. How much work is done by the 120 N force as the cart moves 7 m? If the friction force on the cart is 50 N, how much work is done by the friction force? How much work is done by gravity? What is the net work done on the cart? If the initial speed of the cart was 5 m/s,...
1.A shopper pushes a grocery cart 20.0 m at constant speed on level ground, against a 35.0 N frictional force. He pushes in a direction 250 below the horizontal. (a) What is the work done on the cart by friction? (b) What is the work done on the cart by the normal force? (c) What is the work done on the cart by the shopper? (4 pts) 2 Calculate the kinetic energies of (a) a 2000.0-kg automobile moving at 100.0...
The energy of motion is called: Kinetic energy. potential energy, inertial energy. Power. In an inelastic collision: momentum is conserved. kinetic energy is conserved, both (a) and (b). If the velocity of a moving object is doubled and its mass is cut in half, the kinetic energy of the object is; remains the same, doubled quadrupled, cut in half. When the net work done on an object is speed of the object is me on an object is zero; the...
Two carts mounted on an air track are moving toward one another. Cart 1 has a speed of 1.2 m/s and a mass of 0.45 kg. Cart 2 has a mass of 0.62 kg. (a) If the total momentum of the system is to be zero, what is the initial speed of Cart 2 in meters per second? m/s (b) Does it follow that the kinetic energy of the system is also zero since the momentum of the system is...
Two carts mounted on an air track are moving toward one another. Cart 1 has a speed of 1.1 m/s and a mass of 0.46 kg. Cart 2 has a mass of 0.74 kg (a) If the total momentum of the system is to be zero, what is the initial speed of Cart 2 in meters per second? m/s (b) Does it follow that the kinetic energy of the system is also zero since the momentum of the system is...
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