savpetbuddy savpetbuddy

04-09-2019
Physics

contestada

A car traveling north slows down from 40 m/s to rest in a distance of 100 m. What was the magnitude of its average acceleration in m/s^2? and what direction of the car or is there not enough information?

Respuesta :

MathPhys MathPhys

04-09-2019

Answer:

8 m/s² south

Explanation:

Given:

v₀ = 40 m/s

v = 0 m/s

Δx = 100 m

Find: a

v² = v₀² + 2a (x − x₀)

0² = 40² + 2a (100)

a = -8

The acceleration is 8 m/s² south.

Answer Link

Otras preguntas

One reason for the mass migration of many Irish to North America in the 19th century was (1) a series of crop failures (2) enforcement of a military draft (3) c

What would James Madison say about allowing a person elected to the House of Representatives to serve at the same time on the Supreme Court?

What is the approximate diameter of an inflated basketball? (1) 2 × 10^–2 m (3) 2 × 10^0 m (2) 2 × 10^–1 m (4) 2 × 10^1 m

A store in Roger's neighborhood sells boxes of pencils that have 3 pencils in each box .Roger bought several boxes of pencils at the store . Which could be the

The gram-formula mass of NO2 is defined as the mass of (1) one mole of NO2 (2) one molecule of NO2 (3) two moles of NO (4) two molecules of NO

The bitter confrontations between proslavery and antislavery factions earned the new Kansas territory the name ________. Kansas Hawks Free Soldiers Bleeding Kan

Joshua spent 3/7 of his money on souvenirs on vacation. He has $16 left. How much money did he spend on souvenirs

What is the purpose of breathing exercises? A. To release adrenaline B. To decrease your sense of awareness C. To release endorphins D. To settle the body and m

Which statement correctly describes the cells produced by meiosis? A.The genetic material of the original cell is divided among the new cells. B.The genetic mat

During the 2010 season, football player McGee’s earnings, m, were 0.005 million dollars more than those of his teammate Fitzpatrick’s earnings, f. The two playe