The product of two numbers is 24 and the sum of their squares is 52. Find their sum.

A body of mass 30 kg moves with an initial speed of 20 m/s. If a retarding force of 60 N is applied. how long does the body take to stop?

48 people could complete a task in 17 days. After 6 days, 4 of the workers left. How many days from then will it take to complete the task?

An object of 10 kg is moving with a speed of 2 m/s. The kinetic energy of the object is:

$$ 4 + \frac{1}{6} \times $$ [ { $$ - 12 \times ( 24 - 13 - 3) $$ } $$ \div ( 20 - 4) $$ ] = ?