Solve this :


4. The above graph shows the velocity time graph of a particle of mass 100 g moving in a straight line. Calculate the force on the particle.

5. (a) Name two substances which contract on heating.

Dear Student

From given graph acceleration can be calculated by calculating slope of graph
a = 20/5 =4 m/s2

F = ma = 0.1 kg x 4 ‚Äč m/s = 0.4 N

Regards

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