A water tank is being towed by a truck on a level road, and the angle the free surface makes with the horizontal is measured to be 12°. Determine the acceleration of the truck.

Step 1:

A water tank is being towed by a truck on a level road.

The angle the free surface makes with the horizontal = 12°

To find the acceleration of the truck

Step 2:

The tangent of the angle the free surface makes with the horizontal

= -----(1)

Where is the acceleration truck or the horizontal component of the acceleration

is the vertical component of the acceleration

g - is acceleration due to gravity (9.8 m/s2)