Question

Determine the angular momentum of a car of mass 1500 kg moving in a circular track of radius 50 m with a speed of 40 m/s.
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Answer 1

Explanation:

Given,

mass =1500 kg

speed =40 m/s.

angular momentum (J) = Iw = mr2 * v/r

J = mrv

= 1500*40*50 = 3* 10^6

Answer 2

Given :

Mass (m) = 1500 Kg

Radius (r) = 50 m

Speed (v) = 40 m/sec

To Find :

The angular momentum of the car

Solution :

We know, Angular momentum of a body is equal to the product of the Linear momentum and radius.

Angular momentum (L) = Linear momentum (P) × Radius (r)

                                      =  mv × r

                                      = 1500 × 40 × 50

                                      = 3 × 10⁶ Kg. m². sec⁻¹

Therefore, the angular momentum of the car is found to be 3 × 10⁶ Kg. m². sec⁻¹.