Question

A trolley, while going down an inclined plane, has an acceleration of $2cm/s^2$. What will be its velocity in $3s$ after the start?

Answer 1

Step 1: Given:

$$\begin{gathered} Initialspeed\left(u\right)=0m/s, \\ Acceleraton\left(a\right)=2cm/s^2 \\ Time\left(t\right)=3s \end{gathered}$$

Step 2:Formula used:

$v=u+at[where,visfinalvelocity,uisinitialvelocity,aisaccelerationandtistime]$

Step 3:Final solution:

$$\begin{gathered} v=u+at \\ v=0+2\times 3 \\ v=6cm/s \end{gathered}$$

Thus the velocity of a trolley after $3sis6cm/s$