# Homework Help: Exam question on motion

1. May 13, 2009

### mouk92

1. A Cyclist travelling at a speed of 4.2 ms^-1 accelerates at 1.1 ms^-2 in a time of 7.4 seconds. What is the distance travelled???

2. Relevant equations????

3. The attempt at a solution: The answer is 61m but i dont know how to get that answer

2. May 13, 2009

### Cyosis

I would expect you to have seen $s(t)=\frac{1}{2}at^2+v_0t+s_0$?

3. May 13, 2009

### mouk92

Yeh thanks i got it

4. May 13, 2009

### mouk92

When i was doing it i was squaring the whole of the at instead of just the t

5. May 13, 2009

### Cyosis

I see. You should really put that in the relevant equation section, that way people reading this forum could have seen what went wrong right away.

6. May 13, 2009

### mouk92

Yh sorry this was my first post but thanks anyway