Question

a truck that is stopped on the road has to be pushed hard to get in motion when the truck is moving a little it can be moved faster with a smaller less push why​

Answer 1

Explanation:

when the truck is in rest , static friction opposes its motion but when the truck is in motion kinetic friction opposes it's motion. kinetic friction is always less than static friction. so we have to push harden when the truck is in rest than the truck in motion .