A constant force acts on an object of mass 5 kg for a period of 2 seconds. It increases the velocity of the object from 4 ms -1 to 7 ms -1 . Find the amount of force applied.
A booster pump can be used to fill a tank. Tank capacity is 2400 m3 . The emptying speed is 10 m3 more than its filling capacity and the pump needs 8 minutes lesser to empty the tank than it needs to fill it. What is the filling capacity of the pump?
Identify the odd.
The coordinates of a point, which internally divides the line segment joining the points (-1, 9) and (11, 1) in the ratio 3 :1, are as follows: