Question

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Answer 1

Answer:

Circular Motion

Explanation:

» Radius = 100 m

» Time for 1 revolution = 4 min.

» Total distance in 1 revolution = 2 π R

A ] Average speed

Avg. Speed = Total distance travelled / Total Time taken .

= 2 × π × R / 240 sec.

= 2 × 3.14 × 100 / 240

= 314 / 120

Average speed = 2.8 m / s.

B ] Average Velocity

★ As ; The body starts and ends at same point the displacement is zero ★

Average Velocity = Total displacement / Total time = 0 / 240 sec = 0 m / s.

Answer 2

Answer:

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