Question

A European sports car dealer claims that his car will accelerate at a constant rate from rest to 100 km/hr in 7.00 sec. If so, what is the acceleration?

Answer 1

acceleration `= 3.97 m/sec^2`

Explanation:

`100(km)/(hr) = (100,000 m)/(3600 sec) = 1000/36 m/sec`

Accelerating from `0` to `100 (km)/sec)` in `7.00 sec`
`color(white)("XXX")= ((1000 m)/(36 sec))/(7 sec)`

`color(white)("XXX")= 1000/252 m/sec^2`

`color(white)("XXX") = 3.97 m/sec^2`