A car starts from rest and coasts down a hill with a constant acceleration.If it goes 90m in 8s,find the acceleration and velocity after 8s.​​​

Answers

Answer 1
speed or velocity= s/t => 90m/8s = 11.25 m/s => a= change in speed / change in time => 11.25 m/s / 8s = 1.4 m/s^2

Related Questions

1. Identify Give three examples of kinetic energy and three examples of potential energy .

Answers

Answer:

Examples of Gravitational Potential Energy

A raised weight.

Water that is behind a dam.

A car that is parked at the top of a hill.

A yoyo before it is released.

River water at the top of a waterfall.

A book on a table before it falls.

A child at the top of a slide.

Ripe fruit before it falls.

Explanation:

Any object in motion is using kinetic energy: a person walking, a thrown baseball, a crumb falling from a table, and a charged particle in an electric field are all examples of kinetic energy at work.

Which dog has the most kinetic energy? A. A dog of mass 12 kg running with speed 6 m/s B. A dog of mass 10 kg running with speed 3 m/s C. A dog of mass 16 kg running with speed 5 m/s D. A dog of mass 14 kg running with speed 4 m/s​

Answers

Answer:

A

Explanation:

KE = 1/2 m v^2

     the greatest is  A

Classify each characteristic as either a metal or a nonmetal.
shiny surface
dull surface
good conductor of electricity
good conductor of heat
poor conductor of electricity
poor conductor of heat
malleable
brittle

Answers

Answer:

metal, non, metal, metal, non, non, metal, non

Explanation:

knowledge

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