An artificial stellite is moving in a circular obrit of radius 42250 km. Calculate it's speed if it takes 24 hour to revolve around the earth.

State which of the following situations are possible and give an example for each of these. (a)An object with a constant acceleration but with zero velocity. (b) An object moving in a certain direction with an acceleration in the perpendicular direction.

The speed time graph for a car is shown in the figure. (a) Find how far does the car travel in the first 4 seconds. Shade the area on the graph that represents the distance travelled by the car during the period. (b) Which part of the graph represents uniform motion of the car?

A ball is gently dropped from a height of 20m. If it's velocity increases. Uniformly at the rate of 10 m/s2 with what velocity will it strike the ground? After what time will it strike the ground?

Figure shows the distance-time graph of three objects A, B and C. Study the graph and answer the following questions.

Abdul, while driving to school, computes the average speed for his trip to be 20 km h–1. On his return trip along the same route, there is less traffic and the average speed is 30 km h–1. What is the average speed for Abdule's trip?