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Answer :
A european sports car dealer claims that his product will accelerate at a constant rate from rest to a speed of 100 km/hr in 8.00 s. 50km/hr is the speed after the first 4.00 s of acceleration.
The acceleration of the sports car is the rate at which the speed of the car changes over time. If the car accelerates at a constant rate, this means that the rate of change of the speed (the acceleration) is the same at all times.
If the car accelerates from rest to a speed of 100 km/hr in 8.00 s, the acceleration of the car is
= (100 km/hr) / 8.00 s
= 12.5 km/hr/s.
If the car accelerates for 4.00 s, the change in speed of the car is
= 12.5 km/hr/s x 4.00 s
= 50 km/hr.
Since the car starts from rest, the speed after 4.00 s of acceleration is 50 km/hr.
Therefore, the acceleration is 50 km/hr.
To know more about acceleration please refer: https://brainly.com/question/12134554
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