Question

calculate the work required to be done to stop a car of 1000kg moving of a valocity of 45km/hour​

Answer 1

Answer:

Hence, The work required to stop the car is 45,000 Joules

Explanation:

Given as :

The mass of the car = m = 1000 kg

The velocity of the car = v = 45 km/hours

Let The work required to stop the car = w joule

According to question

work done = force × displacement

∵ Force = mass × acceleration

So, Work done = mass × velocity

Or, w = m × v

or, w = 1000 kg × 45 km/h

Or, w = 45000 joule

So, The work required to stop the car = w = 45,000 joule

Hence, The work required to stop the car is 45,000 Joules . Answer

Answer 2

50,000 joules is ur answer.
Hope it will be better for you