Question
How would the time period of a pendulum change if it were
taken to the Moon?Solution
The time period of a pendulum is given by the formula T = 2Οβ(L/g), where L is the length and g is the gravitational acceleration. Since the Moon's gravitational acceleration is approximately 1/6 of Earth's, the value of g decreases when a pendulum is taken to the Moon. With a smaller denominator in the formula, the time period increases proportionally to the square root of the reduction in gravity.
- Neha takes 10 hours to travel a certain distance at a speed of 20 km/h. What should be her new speed to complete the same journey in 5 hours?
A train is travelling at the rate of 72 km/hr. How many seconds it will take to cover a distance of 2/5 km?
Sheetal rides a bike at an average speed of 40 kmph and reaches her destination in 5 hours. Hemlata covers the same distance in 4 hrs. If Sheetal increa...
Car βCβ is 200 metres ahead of car βDβ. Car βCβ is moving at 25 m/s and car βDβ is moving at 108 km/h. How much time will car βDβ ta...
- While traveling from town βMβ to town βNβ, a traveller covers (1/6)th of the total distance in 1 hour and the remaining in 5 hours. If he returns t...
Two classmates R and S stand at points U and V respectively. R starts toward V from U at a speed of (x β 5) km/h. After 3 hours, S starts toward U fro...
Arjun, Bheem and Nakul walk at speeds in the ratio 3:2:1. If Nakul takes 60 minutes to reach a temple, calculate how much time Arjun would take to reach...
Before servicing, a car runs at a speed of 22 km/hr while after servicing, it runs at a speed of 44 km/h. After servicing the car covers a certain dista...
C can do a piece of work in 20 days, and D can do the same work in 25 days. They start working together, but after 8 days, C leaves. In how many more da...
A car is pursuing a bike that is 220 km away. The bike travels at a speed of 15 km/hr, while the car travels at three times the speed of the bike. How l...