Class 9

Science

Physics

Force and laws of motio

What would be the final velocity of a body if it comes to the rest?

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The velocity time graph for a constant velocity is:

A force of 5 N on a body increases its velocity from 10 m/s to 15 m/s in 3 s. Find the mass of the body

Unit of linear momentum is:

A large truck and a car, both moving with a velocity of magnitude v, have a head-on collision and both of them come to halt after that. If the collision lasts for 10 s then$(i)Thecarwillexperiencethegreaterforceofimpactexertedbythetruck$(ii) The truck will experience the greater momentum change$(iii)Carwillexperiencethegreateravera≥ae≤rationthantruck.$

What is the S. I. unit of acceleration?

Figure shows the displacement of a particle going along the x-axis as function of time. The force acting on the particle is zero in the region

Which of the following graphs shows the graph between velocity (v) and mass (m) when linear momentum (p) is constant?

Speed of a car is 25 m/s. How long will it take to cover the distance of 90 km?