genaro19 genaro19

04-01-2019
Physics

contestada

A car of mass 2400kg moving at 20 m/s slams into a cement wall and comes to a halt?

Respuesta :

04-01-2019

Impulse = change in momentum

The car's momentum was (mass) x (speed)

Momentum = (2400 kg) x (20 m/s)

Momentum = 48,000 km-m/s

To completely stop the car, the impulse = -48,000 km-m/s .

Answer Link

Otras preguntas

what responsibilities do the media have in its exercise of the right to freedom of expression

Can someone explain it to me!

27 4 points The ideal gas law, PV = nRT, is a well-known equation in science that describes the behavior of gases. P is the pressure of the gas, Vis the volume

If you roll a fair 6-sided die and then flip a fair coin, what is the probability that you roll greater than 1 and get heads with the coin?

You and a friend are being picked up from the movies by your friend's mom. She's told you where she parked and has asked you to walk over to her car so that she

Based on the information in the second paragraph, the relationship between legumes and rhizobia ultimately _____ the amount of nitrogen available in the soil. C

If methods used in molecular systematics were not developed what would be the effect on the study of systematics?

If the drug is taken twice a day and costs $234.50 for 60 pills, what is the cost to prevent 1 event if the NNT is 10?

Which places constitute the Bermuda Triangle?

What effect do predators have on the ecosystem?