Just before II. Systems A block of mass m on a frictionless surface is attached to an ideal massless spring of constant k, as shown at right. When the block is at x = 0, the spring is neither stretched nor compressed. At time t,, the block is released from rest at x = x;. At time t, the block passes x = 0 moving to the left with speed vr. Tõl= 0 k x = x, A. Consider system A, which consists of the block and the spring. 20 1. List all the forces acting on system A during the interval from t; to tr. For each force, indicate the object exerting the force and the type of force. k m x =0 x=x, 2. For each force that you listed above, state whether that force does positive, negative, or zero work on system A during the interval from t; to tf. Explain. 3. Write an expression for each of the following quantities for the interval from t; to te. Express your answer in terms of given variables. If any of the quantities are zero, state so explicitly. Explain.
Just before II. Systems A block of mass m on a frictionless surface is attached to an ideal massless spring of constant k, as shown at right. When the block is at x = 0, the spring is neither stretched nor compressed. At time t,, the block is released from rest at x = x;. At time t, the block passes x = 0 moving to the left with speed vr. Tõl= 0 k x = x, A. Consider system A, which consists of the block and the spring. 20 1. List all the forces acting on system A during the interval from t; to tr. For each force, indicate the object exerting the force and the type of force. k m x =0 x=x, 2. For each force that you listed above, state whether that force does positive, negative, or zero work on system A during the interval from t; to tf. Explain. 3. Write an expression for each of the following quantities for the interval from t; to te. Express your answer in terms of given variables. If any of the quantities are zero, state so explicitly. Explain.
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Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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could you help with section II: A, 1, 2,3, 4 and 5?
Transcribed Image Text:Just before
II. Systems
A block of mass m on a frictionless surface is attached to an
ideal massless spring of constant k, as shown at right. When the
block is at x = 0, the spring is neither stretched nor compressed.
At time t,, the block is released from rest at x = x;. At time t, the
block passes x = 0 moving to the left with speed vr.
Tõl= 0
k
x = x,
A. Consider system A, which consists of the block and the
spring.
20
1. List all the forces acting on system A during the interval
from t; to tr. For each force, indicate the object exerting
the force and the type of force.
k
m
x =0
x=x,
2. For each force that you listed above, state whether that force does positive, negative, or
zero work on system A during the interval from t; to tf. Explain.
3. Write an expression for each of the following quantities for the interval from t; to te.
Express your answer in terms of given variables. If any of the quantities are zero, state so
explicitly. Explain.
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