Question

The motor of a 1780 kg speed
boat pushes 3880 N to the right.
Air resistance pushes 512 N to the
left, and the water drags the boat
1910 N to the left. What is the
acceleration of the boat?
(Unit = m/s2)​

Answer 1

Answer:

0.82 ms⁻²

Explanation:

consider the way the forces are acting on the boat , in the graph

assume the boat is accelerating to the right

we can apply Newton's second law of motion (F = ma )

→ F = ma

3880 -1910 -512 = 1780 * a

a = 0.82 ms⁻²

acceleration =  0.82 ms⁻²