Question

It takes 338 kJ of energy to move a car of mass 1000 kg at a speed of v.
Calculate v.

formula is shown below!

Answer 1

Answer:

0.827 ms-¹

Explanation:

E = 1/2 × mv²

338 = 1/2 × 1000 × v²

676 = 1000v²

v² = 676/1000

v = 26÷10√10

v = 26 ÷ 10 × 3.16

v = 26 ÷ 31.6

v = 0.827 ms-¹

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