Which of the following has the largest momentum?

A. a 10kg dog running down the street at 30mph

B. a tightrope walker slowly crossing niagara falls

C. a 0.02kg bullet moving down the barrel at 800mph

D. a semi truck parked in a parking lot

Question

Physics

Guest

22 March, 21:10

Which of the following has the largest momentum?

A. a 10kg dog running down the street at 30mph

B. a tightrope walker slowly crossing niagara falls

C. a 0.02kg bullet moving down the barrel at 800mph

D. a semi truck parked in a parking lot

+5

Answers (1)

Know the Answer?

Rosa Johnston · Answer 1

Momentum = mass x velocity

Thus Option A is the correct answer

Momentum (dog) = 10 kg x (0.447 x 30) m/s

= 134.1 Kg m/s

Momentum (bullet) = 0.02 kg x (0.447 x 800) m/s

= 7.152 Kg m/s

Momentum (truck) = 0, as v = 0

tightrope has both low mass and low speed, thus its momentum will be low

Which of the following has the largest momentum?A. a 10kg dog running down the street at 30mphB. a tightrope walker slowly crossing niagara fallsC. a 0.02kg bullet moving down the barrel at 800mphD. a semi truck parked in a parking lot

Which of the following has the largest momentum?

A. a 10kg dog running down the street at 30mph

B. a tightrope walker slowly crossing niagara falls

C. a 0.02kg bullet moving down the barrel at 800mph

D. a semi truck parked in a parking lot