Question

A 1155 kg automobile is pulled by a horizontal tow line with a net force of 848 N. What is the acceleration of the auto?

Answer 1

Question. A 1155 kg automobile is pulled by a horizontal tow line with a net force of 848 N. What is the acceleration of the auto?

Solution. Let us draw the picture of this process:

Rectangle on this picture is the auto, F is the net

force acting on it. According to Newton's second law $F = ma$ . From this equation we can find the acceleration of the auto:

$$a = \frac {F}{m} \rightarrow a = \frac {8 4 8}{1 1 5 5} = 0, 7 3 \frac {m}{s ^ {2}}.$$

Answer: $a = 0,73\frac{m}{s^2}$