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 is the relationship between the 4s in 8,444?

What are bacteria called that require a constant supply of oxygen in order to survive? Select one of the options below as your answer: a. Obligate aerobes b. Ob

The term pressure most nearly refers to which of the following? a. another term for density b. a property of water near the ocean bottom c. force per area cr

20 Which statement describes a reversible reaction at equilibrium?(1) The activation energy of the forward reaction must equal the activation energy of the reve

how to estimate 19 divided bye 1,425

An argument is invalid if and only if _____________. (Points : 1) Its reasoning is strong and its premises are true. It is possible for all of its premises to b

Which method of separation can be used for a homogeneous mixture? a. magnetism b. filtration c. density d. distillation

What is the number of pairs of electrons shared in a molecule of N2? (1) 1 (3) 3 (2) 2 (4) 6

what elements are in olive oil? i am really thankful if u answer this :) ( all elements in olive oil )

in word form how do you write 710,718