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WorksheetsNLM complete
Total questions: 60
Worksheet time: 30mins
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A cube slides down the surface of a ramp at a constant velocity. What is the magnitude of the frictional force that acts on the cube due to the surface?
The weight of the cube
The component of weight of the cube parallel to the plane
The component of weight of the cube perpendicular to the plane
The component of the normal reaction at the surface parallel to the plane
A box is accelerated to the right across rough ground by a horizontal force Fa. The force of friction is Ff. The weight of the box is Fg and the normal reaction is Fn. Which is the free-body diagram for this situation?
Two blocks of weight 5 N and 2 N are attached to two ropes, X and Y.
The blocks hang vertically. The mass of the ropes is negligible. What is the tension in X and the tension in Y?
7N, 7N
7N, 2N
5N, 2N
5N, 3N
A cart of mass 4.0 kg is being pulled with a force of 24 N. The cart accelerates at 3.0m s–2. What is the net force on the cart?
6.0 N
8.0 N
12 N
24 N
A force F acts on a block at an angle θ with respect to a horizontal surface.
The block is moving with a constant velocity v along the surface. A resistive force acts on the block.
Which of the following correctly represents the forces acting on the block?
A student is sitting on a chair. One force that is acting on the student is the pull of gravity. According to Newton’s third law, there must be another force which is
the upward force on Earth
the upward push of the chair on the student
the downward force on the student
the downward push of the chair on Earth
Two forces act along a straight line on an object that is initially at rest. One force is constant; the second force is in the opposite direction and proportional to the velocity of the object.
What is correct about the motion of the object?
The acceleration increases from zero to a maximum.
The acceleration increases from zero to a maximum and then decreases.
The velocity increases from zero to a maximum.
The velocity increases from zero to a maximum and then decreases.
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