At the start of the race, a racer accelerates at a rate of 6.5 m/s² . They push off with a force of 442 N. What is the mass of the racer?

Question

Quizplus · Accepted Answer

The formula to find the required force is force = mass in kg × acceleration in m/s². F=ma To find the mass of an object we must isolate mass. To do this, we divide both sides by the acceleration F/a = ma/a F/a = m Then we plug in the numbers from the problem. 442 N / 6.5 m/s² = 68 kg Mass is always positive.

At the Start of the Race, a Racer Accelerates at a Rate