A certain force exerted for `1.2s` raises the speed of an object from `1.8m//s` to `4.2m//s`. Later, the same force is applied for `2 seconds`. How much does the speed change in `2s`?

A force increases the speed of a 1.0 kg object from 4 m/s to 8m/s . The work done by the force will be ____.

Certain force acting on a 20 kg mass changes its velocity from 5m//s to 2m//s . calculate the work done by the force.

Certain force acting on a 20 kg mass changes its velocity from 5m//s to 2m//s . calculate the work done by the force.

Momentum of an object changes from 100 kg m/s to 200 kg m/s in 2 seconds. What is the force applied to it?

Raju increased the speed of moving mass '50kg' from 2m/s to 4m/s. How much force will be required, if velocity change takes place with in 0.2 sec?

A constant force acts on object of mass 5 kg for a duration of 2s It increases the object's velocity from 3m//s to 7m//s Find the magnitude of the applied force. Now if the force were applied for a duration of 5s what would be the final velocity of object?