Question

A truck of mass $5\times {10}^{3}kg$ starting from rest travels a distance of $0.5km$ in $10s$ when a force is applied on it. Calculate the acceleration acquired by the truck

• A. $25m{s}^{-2}$
• B. $1m{s}^{-2}$
• C. $10cm{s}^{-2}$
• D. $10m{s}^{-2}$

Answer 1

Answer: (D)

$10m{s}^{-2}$

Here truck has initial velocity of 0 m/sec and travelled a distance of 0.5 Km which is also equal to 500 m in 10 seconds.
$s=ut+0.5a{t}^2$
$s=0\times 10+0.5\times a\times {10}^2$
$500=0.5\times a\times 100$
$a=10m/s^2$
Hence acceleration is $10m/s^2$.