A vehicle starts moving along a straight line path from rest. In the first t seconds, it moves with a uniform acceleration of 2 m/s2 and then in the next 10 seconds, it moves with a uniform acceleration of 5 m/s2. If the total distance traveled by the vehicle is 550 m, the value of time t is:

Which Indian independence movement leader was primarily known for his philosophy and practice of non-violent civil disobedience?

Who gave the call for 'Do or Die' during the Quit India Movement in 1942?

Which of the following revolutionary pairs were imprisoned together in Cellular Jail and faced harsh conditions, contributing significantly to the Indian independence movement?