A net force of 200 N acts on a 100-kg boulder, and a force of the same magnitude acts on a 130-g pebble during the same amount of time. Which object has the greatest value for each of these quantities?

Question

Physics

Liana Gilmore

13 September, 19:34

A net force of 200 N acts on a 100-kg boulder, and a force of the same magnitude acts on a 130-g pebble during the same amount of time. Which object has the greatest value for each of these quantities?

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Answers (1)

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Antoine Rollins · Answer 1

Answer: pebble has the greatest value of acceleration due to its low mass.

Explanation:

According to newton's second law of motion,

Force = mass * acceleration

For boulder,

Acceleration = Force/mass

Force acting on boulder is 200N

Its mass is 100kg

Acceleration = 200/100

Acceleration = 2m/s²

Similarly for pebble,

Force on pebble = 200N (the same as boulder)

Its mass is 130g = 0.13kg (has to be converted to the standard unit which is kg)

Its acceleration = 200/0.13

Acceleration of pebble = 1538.5m/s²

Since the question doesn't specify what to compare, we will compare their accelerations.

Therefore, pebble has the greatest value of acceleration due to its low mass.