A carmaker has designed a car that can reach a maximum acceleration of 12 meters/second2. The car's mass is 1,515 kilograms. Assuming the same engine is used, what should the car's mass be if the carmaker wants to reach an acceleration of 15 meters/second2? Use F = ma.

A 1,212 kg

B 1,335 kg

C1,466 kg

D 1,515 kg

D 1,894 kg

Question

Physics

Frank Richards

19 November, 19:18

A carmaker has designed a car that can reach a maximum acceleration of 12 meters/second2. The car's mass is 1,515 kilograms. Assuming the same engine is used, what should the car's mass be if the carmaker wants to reach an acceleration of 15 meters/second2? Use F = ma.

A 1,212 kg

B 1,335 kg

C1,466 kg

D 1,515 kg

D 1,894 kg

+3

Answers (1)

Know the Answer?

Enrique Duffy · Answer 1

1) 15 / 12 = 1.25 ratio

2) to increase acceleration 1.25 times (with same F, or same engine) you have to lower mass 1.25 times

3) 1515/1.25 = 1212 kg

choose A