A box is placed on the floor of a truck moving with an acceleration of 7 ms^(-2). If the coefficient of kinetic friction between the box and surface of the truck is 0.5., find the acceleration of the box relative to the truck

A box is placed on the floor of a truck moving with an acceleration of

1.	A box is placed on the floor of a truck moving with an acceleration of 7 ms^(-2). If the coefficient of kinetic friction between the box and surface of the truck is 0.5., find the acceleration of the box relative to the truck
Answer» `1.7ms^(-2)` `2.1 MS^(-2)` `3.5 ms^(-2)` `4.5 ms^(-2)` ANSWER :B