Question

The equation for distance id d = st. If a car has a speed of 51 m/s and travels for 13 seconds, how far does it go?

A. 810 m
B. 3.9 m
C. 64 m
D. 663 m

Answer 1

The correct answer is D.
`663m`

Step-by-step explanation

The question says how far does it go, meaning we want to find the distance covered.

The equation for distance is

`d=st`

where
`d` is the distance covered

`s` is the speed of the car and

`t` is the time taken.

From the question

`s=51ms^(-1)` and
`t=13s`

We substitute these values into the formula to get,

`d=51*13m`

We carry out the multiplication to obtain,

`d=663m`

Therefore the correct answer is D