200g Ball Is Thrown Vertically Upward With Initial Velocity Of 30 Ms 1

(i) A 200g ball is thrown vertically upward with a initial velocity of 30 ms-1. Draw a … will be the potential energy of ball at…

Answers:

Given : m = 0.200 kg ; u = 30 ms-1

(i) Shown in diagram alongside.

(ii) 3 seconds 

(iii) K.E = 1/2 mv= 1/2 x 200 (30)= 90 J.

(iv) P.E = K.E = 90 J.

[By the law of conservation of energy]