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A car travels from rest to a velocity of 20m/s in 5 seconds. What is the acceleration of the car?
A car travels from rest to a velocity of 20m/s in 5 seconds. What is the acceleration of the car?
4m/s²
What is the difference between a scalar and a vector quantity in physics?
What is the difference between a scalar and a vector quantity in physics?
A scalar quantity has only magnitude, while a vector quantity has both magnitude and direction.
A car is traveling at 25m/s when the brakes are applied, and it comes to rest in 10 seconds. What is the deceleration of the car?
A car is traveling at 25m/s when the brakes are applied, and it comes to rest in 10 seconds. What is the deceleration of the car?
-2.5m/s²
What is the net force on an object that is subject to two forces, one of 5N to the left and one of 3N to the right?
What is the net force on an object that is subject to two forces, one of 5N to the left and one of 3N to the right?
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A 2kg object has a gravitational potential energy of 100J at the top of a hill. What is the height of the hill?
A 2kg object has a gravitational potential energy of 100J at the top of a hill. What is the height of the hill?
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What is the relationship between the gradient of a speed-time graph and the acceleration of an object?
What is the relationship between the gradient of a speed-time graph and the acceleration of an object?
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A car travels at a constant velocity of 15m/s for 20 seconds. How far does it travel in this time?
A car travels at a constant velocity of 15m/s for 20 seconds. How far does it travel in this time?
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What is the energy efficiency of a machine that converts 80J of input energy into 60J of useful energy?
What is the energy efficiency of a machine that converts 80J of input energy into 60J of useful energy?
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A force of 10N acts on an object for 2 seconds. How much work is done on the object?
A force of 10N acts on an object for 2 seconds. How much work is done on the object?
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What is the purpose of a ticker tape in measuring the motion of an object?
What is the purpose of a ticker tape in measuring the motion of an object?
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