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प्रश्न
Plotting a graph for momentum on the Y-axis and time on X-axis. the slope of the momentum-time graph gives
पर्याय
Impulsive force
Acceleration
Force
Rate of force
उत्तर
Force
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संबंधित प्रश्न
A spring is compressed against a rigid wall. Draw a neat and labelled diagram showing the forces acting on the spring.
Give one example in the given cases:-
A force changes the size of a body
Explain what is understood by the following statement 1 kilogram-force (kgf) - 9.8 newton
A uniform car of mass 500g travels with a uniform velocity of 25 ms-1 for 5 s. The brakes are then applied and the car is uniformly retarded and comes to rest in further 10 s calculate
1) the retardation
2) the distance which the car travels after the brakes are applied
3) The force exerted by the brakes.
How do you define force? What are the forces acting on a man standing in a lift? If the lift moves down with an acceleration of 2 ms−2, what is the net force on the man if his mass is 50 kg?
Moon or Cloud?
Observe the moon on a windy night with a fair bit of cloud cover in the sky. As the cloud passes in front of the moon you sometimes think it is the moon which is moving behind the cloud. What would you think if you were to observe a tree at the same time?
Fill in the empty spaces
Can you give example for contact and non-contact forces?
Give two examples to verify that a force tends to change the static condition of a body.
Two friends on roller-skates are standing 5 m apart facing each other. One of them throws a ball of 2 kg towards the other, who catches it, How will this activity affect the position of the two? Explain your answer.
Does the palm apply any force on the ball, when we place our palm in front of a moving ball?
