An 850.0 kg car wants to accelerate from rest to a speed of 18.0 m/s.

Physics

1 answer:

strojnjashka [21]3 years ago

8 0

Answer:

$1.07*10^5 Joules$

Explanation:

From Kinetic energy K.E = m* $v^2$ /2

Where mass of the car, m = 850 kg

velocity of the car, v = 18 m/s

Hence K.E = $850*18^2/2 = 1.07*10^5 Joules$

Also, we can evaluate the given time

time = K.E / Power

= $1.07*10^5 / (50*746)$

= 2.87 secs

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