Question

Ten complete oscillations of a simple pendulum are recorded in the time a swimmer takes to finish a lap in a pool. If the time period of the pendulum is 12 s, how much time did the swimmer take to swim across the pool? *
12 s
24 s
120 s
240 s​

Answer 1

Answer:

120s

Explanation:

NO. OF TIMES OSCILLATIONS OF A PENDULUM RECORDED=10

TIME PERIOD OF THE PENDULUM= 12S

THEREFORE, TIME TAKEN BY THE SWIMMER TO SWIM ACROSS THE POOL= (10×12)S= 120S= 2 MINUTES

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