The income of Rahul is Rs 60000 and his expenditure is Rs 40000. If his income is increased by 20% and expenditure in increased by 15%, then what will be the percentage increase in his savings?
A body of mass 3 kg accelerates from 10 m/s to 20 m/s in 5 seconds due to the application of a force on it. Calculate the magnitude of this force (in N).