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Criado por Mel Hughes
quase 8 anos atrás
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What is the SI unit of force?
In what direction does the force of weight always act?
What is the unit of resultant force?
What is the resultant force of a 4N force and a 3N force acting in the same direction?
What happens to the acceleration of an object as the resultant force on it decreases?
What is the resultant force on a car of mass 1000kg if its acceleration is 2m/s2?
What is the resultant force on a car travelling at a steady speed on a straight horizontal road?
What is the relationship between stopping distance, thinking distance and braking distance?
Why does an object dropped in a fluid initially accelerate?
What eventually happens to an object falling in a fluid?
What is an inelastic object?
A spring has a spring constant of 30 N/m. If the extension is 0.30m, what is the force applied?
How can we tell when a spring has exceeded its limit of proportionality?
Why does making a vehicle more streamlined improve fuel economy?
When a vehicle is travelling along a straight road at a steady speed what can you say about the engine force and the air resistance?
If you push on a wall with a horizontal force of 15N to the right, what force will the wall exert on you?
What happens to an object moving at a steady speed if the resultant force on it is zero?
When will a resultant force cause a deceleration?
What happens to the acceleration of an object as the resultant force on it increases?
What is the resultant force on a car of mass 1500 kg if its acceleration is 0.5m/s2?
What is the acceleration of a car of mass 2000kg if the resultant force acting in its direction of motion is 800N?
What is the effect of the speed of a vehicle on its stopping distance?
What is terminal velocity?
What is the weight of a person of mass 70kg?
What is an elastic object?
What does Hooke's law state?
When a force of 10N is applied to a string it extends by 2.0cm. What is the spring constant of the spring?