2 Answers

Paramesh Korrakuti · Answer 1 · 2021-06-25T15:39:33+0000

The kinetic energy of the racecar is approximately 697,439 J.

The kinetic energy (KE) of an object can be calculated using the formula KE = 0.5 x mass x velocity^2.

To solve for KE, we need to convert the speed from km/hr to m/s. By dividing 110 km/hr by 3.6, we get a speed of approximately 30.55 m/s.

Plugging in the values, KE = 0.5 x 1500 kg x (30.55 m/s)^2 = approximately 697,439 J (joules).

Somasundaram Sekar · Answer 2 · 2021-06-27T14:32:58+0000

Answer:

7.0 × 10^5 J

Step-by-step explanation:

First we convert the speed of 110 km/hr to metre-per-seconds

v = 110×(1000/3600)

v = 30.56 m/s

m = 1500 kg

$kinetic \: energy \: = (1)/(2) m {v}^(2)$

= 0.5 × 1500 × (30.56)²

= 700231.5

= 7.0 × 10^5 J

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