Question

Solves the word problems –

Convert 54 km/hr. into m/s

Calculate Time-period of a simple pendulum if it takes 72 seconds to complete 24 oscillations.

A train is travelling at a speed of 100 km/hr. How long will it take to complete a journey of 500 km without stopping in between.

Ramesh takes 15 minutes to reach market from his house on this cycle. If the speed of his cycle is 4 m/s calculate the distance between his house and market?

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Answer 1

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1. 54000m
2. 72/24 = 3
3. 500/100 =
4. 15×4 =60

Answer 2

The time taken to complete one oscillation is known as the time period of the pendulum.

Time Period = (Total time is taken)/ (Number of Oscillations)

Given: - 20 oscillations taking 32s to complete.

Therefore 1 oscillation will take = (32)/ (20) sec = 1.6 second

Therefore 1.6s is the time period of the pendulum.

I hope it will help you