Question

kinetic energy of an object of mass 2kg moving with a speed of 3m/s and the potential energy of an object of mass 500g at a height of 20m are respectively (acceleration due to gravity is 10m/s^2)


Please please please please

Answer 1

Answer:

Answer:

5 π / 3 rad / sec²

Explanation:

Given :

ω = 500 rpm

ω in term of rad / sec

= > ω = 500 × 2 π / 60 rad / sec

= > ω = 50 π / 3 rad / sec

Time t = 10 sec

We have to find angular acceleration α :

We know :

α = ω / t

Putting value here we get :

= > α = ( 50 π / 3 ) / 10 rad /sec²

= > α = 5 π / 3 rad / sec²

Hence we get required answer!

Answer 2

Answer:

refer to the attachment