Question

a moving car mass 1200 kg has 2.96*(10)^5 joule. calculate its speed​

Answer 1

Answer:

7.02 m/s : approximately

Explanation:

KE = 2.96 × 10^5 J

=> 1/2 mv^2 = 2.96 ×10^5

=> 1/2 × 1200 × v^2 = 296 × 10^3

=> v^2 = 296 × 1000 × 2 / 1200

=> v^2 = 49.333333

=> v =

$\sqrt{49.3333}$

= 7.0237667957 m/s

= (approx.) 7.02 m/s