Question

u=? ,a=0.5,t=30,s=235​

Answer 1

Answer:

$\frac{1}{3} m/s$

Explanation:

Given:

a = 0.5 m/s²

t = 30 seconds

s = 235 metres

To find:

u (initial velocity)

Using the second equation of motion which says :

S=ut+$\frac{1}{2}at^{2}$

Where:

s= distance

u = initial velocity

t = time

a = accerleration

235=u×30+$\frac{1}{2} \times 0.5 \times 30 \times 30$

235=30u+225

235-225=30u

10=30u

u = $\frac{1}{3} m/s$

The initial velocity is equal to $\frac{1}{3} m/s$