 Hi and welcome to the session. Let's work out the following question. The question says a body has a velocity of 15 meter per second at the certain instant and 10 seconds later It has a velocity of 45 meter per second if the velocity changes uniformly find the distance covered by the body So let us start with a solution to this question Here u that is the initial velocity is 15 meter per second Time is given to be 10 seconds and v is equal to 45 meter per second That is the final velocity. Now from equations of motion We know that v is equal to u plus f into t where f is the acceleration Simply putting in the values we get 45 is equal to 15 plus f into 10 This implies 30 is equal to 10 f This implies that f is equal to 30 divided by 10. That is 3 meter per second square. That is this is the acceleration Now from another equation of motion We know that v square minus u square is equal to 2 into f into s This implies 45 square minus 15 square is equal to 2 into 3 into s We have to find out the value of s that is the distance covered by the body So this implies that s is equal to 60 into 30 divided by 6 That is equal to 300 meter. So our answer to this question is that the distance covered by the body is 300 meter. I hope that you understood the solution and enjoyed the session. Have a good day