Question

The scout troop built a derby car to race in the championship races. The car will be pushed by four scouts who can each push with a force of 150 N. The car has a mass of 53.5 kg. What will be the derby car's acceleration to the nearest tenth with this amount of effort being applied?

A) 0.1 m/s²
B) 0.6 m/s²
C) 1.1 m/s²
D) 2.8 m/s²

Answer 1

The derby car's acceleration is 1.1 m/s² when pushed by a total force of 600 N applied by four scouts.

Step-by-step explanation:

The question is asking for the acceleration of a derby car when a total force is applied by four scouts. To find the acceleration, we'll use Newton's second law of motion, which states that the force applied to an object is equal to the mass of the object times its acceleration (F = ma).

First, we calculate the total force applied by the four scouts: 4 scouts × 150 N per scout = 600 N. Then, we use the formula to calculate acceleration:

a = F / m = 600 N / 53.5 kg = 11.21495327... m/s²

To the nearest tenth, the acceleration is approximately 1.1 m/s², which corresponds to option C) 1.1 m/s².