3. An 8.50 kg block is held at a height H1 = 7.50 m. The block...
3. An 8.50 kg block is held at a height H1 = 7.50 m. The block
is released and lands on a spring whose initial height before the
collision is H2 = 3.00 m. The spring has a spring constant of
1.50x103 N/m. (Ignore the size of the block.) a. Use Conservation
of Energy to find the speed of the block just before it touches the
spring. (5)
b. Find the maximum compression of the spring. (20)
c. Find the maximum height the block reaches after leaving the
spring
Homework Answers
a)
b)
c)
Maximum height the block reaches after leaving the spring = 7.5 m
(Only if the block gets back to its initial height energy will remain conserved.)
4.[1pt] A block of mass m - 6.10 kg is released from rest at a height...
4.[1pt] A block of mass m - 6.10 kg is released from rest at a height of H- 10.00 m on a curved frictionless ramp. At the foot of the ramp is a sring whose spring constant is k -455.0 N/m. What is the maximum compression of the spring, x? Answer: Submit All Answers 5.[lpt] After the spring reaches its maximum compression, it pushes the block backwards. What is the maximum height reached by the block? Answer: Submit All Answers
1 3. A block of mass m 1.9 kg is held against a spring of spring...
1
3. A block of mass m 1.9 kg is held against a spring of spring constant k 410 and compressed 0.75 m. When released, it is pushed along the frictionless surface towards mi rebounds mass m 4.3 kg. The two masses collide and mass towards the spring at a speed of 2.1 m/s, while mass m slides back towards the spring at a sp a. What is the speed of mass mi right before the collision? b. What is...
1) A block of mass m = 0.52 kg is attached to a spring with force...
1) A block of mass m = 0.52 kg is attached to a spring with
force constant 119 N/m is free to move on a frictionless,
horizontal surface as in the figure below. The block is released
from rest after the spring is stretched a distance A = 0.13 m.
(Indicate the direction with the sign of your answer. Assume that
the positive direction is to the right.)
(a) At that instant, find the force on the block. N
(b)...
(10 points) A block of mass m = 0.80 kg is held in place against a...
(10 points) A block of mass m = 0.80 kg is held in place against a spring with spring constant k = 3000 N/m, compressing it a distance of 0.022 m. The block is released from rest and is projected to the right and down a ramp of height h = 1.5 m, as shown in the figure below. The entire surface is frictionless until point B, after which the coefficient of friction between the block and the surface is...
5. A2 kg block is dropped from a height of 0.4 m unto a spring whose...
5. A2 kg block is dropped from a height of 0.4 m unto a spring whose force constant k is 1960 N/m. Find the maximum compression of the spring. 6. A 10 kg body is forced against a horizontal elastic spring compressing it an amount of 0.5 m. When the body was released, it moves on a horizontal surface a distance of 3 m before coming to rest. The force constant of the spring is 500 N/m. What is the...
A pendulum bob, with mass 1.60 kg, is held at rest initially in a horizontal position...
A pendulum bob, with mass 1.60 kg, is held at rest initially in a horizontal position as shown. The string has negligible mass and a length of 1.20 m. The bob is then released from rest. It swings down and collides with a block of mass 2.40 kg initially at rest. Ignore air resistance. a) Use the Principle of Conservation of Mechanical Energy to find the speed of the pendulum bob just before the collision. b) (The bob collides with...
A block of mass m = 0.672 kg is fastened to an unstrained horizontal spring whose...
A block of mass m = 0.672 kg is fastened to an unstrained horizontal spring whose spring constant is k = 97.0 N/m. The block is given a displacement of +0.162 m, where the + sign indicates that the displacement is along the +x axis, and then released from rest. (a) What is the force (with sign) that the spring exerts on the block just before the block is released? (b) Find the angular frequency of the resulting oscillatory motion....
P2. Starting with an initial speed of 5.00 m/s at a height of 0.300 m, a...
P2. Starting with an initial speed of 5.00 m/s at a height of 0.300 m, a 1.50-kg ball swings downward and strikes a 4.50-kg ball that is released from rest at a height of 0.100 m, as the (not to scale) drawing shows. The ball-release timing mechanism is calibrated so that they meet at the bottom of their respective swings, where h is taken to be zero. 1.50 kg 4.50 kg h-0.300 m Vi 5.00 m/s h2-0.100 nm ) Using...
A 1.0-kg block (Block 1) at rest on a horizontal frictionless surface is connected to unstretched...
A 1.0-kg block (Block 1) at rest on a horizontal frictionless surface is connected to unstretched spring Ck 400 N/m) whose other end is fixed. A 2.0-kg block (Block 2) moving at 4.0 m/s collides with Block 1. Block 2 is found to move leftward with a speed of 1 m/s after collision. (1) What is the speed of Block 1 after collision? (6 pts) (2) What maximum compression of the spring occurs when Block I momentarily stops? (6 pts)...
4.[1pt] A block of mass m - 6.10 kg is released from rest at a height of H- 10.00 m on a curved frictionless ramp. At the foot of the ramp is a sring whose spring constant is k -455.0 N/m. What is the maximum compression of the spring, x? Answer: Submit All Answers 5.[lpt] After the spring reaches its maximum compression, it pushes the block backwards. What is the maximum height reached by the block? Answer: Submit All Answers
1
3. A block of mass m 1.9 kg is held against a spring of spring constant k 410 and compressed 0.75 m. When released, it is pushed along the frictionless surface towards mi rebounds mass m 4.3 kg. The two masses collide and mass towards the spring at a speed of 2.1 m/s, while mass m slides back towards the spring at a sp a. What is the speed of mass mi right before the collision? b. What is...
1) A block of mass m = 0.52 kg is attached to a spring with
force constant 119 N/m is free to move on a frictionless,
horizontal surface as in the figure below. The block is released
from rest after the spring is stretched a distance A = 0.13 m.
(Indicate the direction with the sign of your answer. Assume that
the positive direction is to the right.)
(a) At that instant, find the force on the block. N
(b)...
(10 points) A block of mass m = 0.80 kg is held in place against a spring with spring constant k = 3000 N/m, compressing it a distance of 0.022 m. The block is released from rest and is projected to the right and down a ramp of height h = 1.5 m, as shown in the figure below. The entire surface is frictionless until point B, after which the coefficient of friction between the block and the surface is...
5. A2 kg block is dropped from a height of 0.4 m unto a spring whose force constant k is 1960 N/m. Find the maximum compression of the spring. 6. A 10 kg body is forced against a horizontal elastic spring compressing it an amount of 0.5 m. When the body was released, it moves on a horizontal surface a distance of 3 m before coming to rest. The force constant of the spring is 500 N/m. What is the...
P2. Starting with an initial speed of 5.00 m/s at a height of 0.300 m, a 1.50-kg ball swings downward and strikes a 4.50-kg ball that is released from rest at a height of 0.100 m, as the (not to scale) drawing shows. The ball-release timing mechanism is calibrated so that they meet at the bottom of their respective swings, where h is taken to be zero. 1.50 kg 4.50 kg h-0.300 m Vi 5.00 m/s h2-0.100 nm ) Using...
A 1.0-kg block (Block 1) at rest on a horizontal frictionless surface is connected to unstretched spring Ck 400 N/m) whose other end is fixed. A 2.0-kg block (Block 2) moving at 4.0 m/s collides with Block 1. Block 2 is found to move leftward with a speed of 1 m/s after collision. (1) What is the speed of Block 1 after collision? (6 pts) (2) What maximum compression of the spring occurs when Block I momentarily stops? (6 pts)...
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