Question

32.A body of mass 2 kg, initially at rest, is acted upon simultaneously
by two forces, one of 4 N and the other of 3 N acting at right
angles to each other. Find the kinetic energy of the body after 20
seconds.​

Answer 1

Answer:2500 joules

Explanation:Since they're at right angles you can use the pythagorean theorem to add them together and find out the total force on the object which would be sqrt(3^2 4^2)=5N

The acceleration would be 5N/2KG=2.5M/S^2

The velocity after 20 seconds would be 20S*2.5M/S^2=50M/S

The equation for kinetic energy is (Mass*velocity^2)/2 which is (2*50^2)/2 which is 2500 and the units are (KGM^2)/S^2 which are Joules so the answer is:  2500 joules

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please mark as the brainliest answer.

Answer 2

Hope this helps..

please mark the brainliest answer..