Question

9 If velocity v of a particle moving on a straight line as a function of time t is given as v = 5-t (m/s) then the distance covered by the particle in first 10 s is (1) 5 m (2) 15 m 13 25 m (4) 50 m​

Answer 1

Explanation:

Given Initial velocity of ball, u=49 m/s

Let the maximum height reached and time taken to reach that height be H and t respectively.

Assumption: g=9.8 m/s

2

holds true (maximum height reached is small compared to the radius of earth)