Question

Q.1)A pendulum takes 40s to complete 25 oscillations. Find the pendulum’s time period.
Q.2) Two stations are 450km apart. A train takes 6hrs to cover this distance. What is the train’s speed?

Answer 1

Hey
Here's your answer!!

1) Time taken = 40 s
No. of oscillations = 25.
so, time period = time taken to complete one oscillation
=Time taken / No. of oscillations
= 40/25 secs
= 1.6 secs. (ANSWER)

2)Distance between the two stations = 450 km
Time taken to cover this distance = 6 hrs.
:. Speed = distance / time taken
= 450/6 km/hr
= 75 km/hr. (ANSWER)

Hope it helps!!