3 years ago

El conductor de un coche de 650 kg que va a 90 km/h frena y reduce su

1 answer:

7 0

A. 90km/h = 25 m/s
W=1/2mv^2
=1/2* 650* 25^2
= 203125(J)
b. v’= 90-50= 40km/h
= 100/9 m/s
W=1/2mv^2
=1/2*650*(100/9)^2
= 40123,45679

You might be interested in

What do radio waves and microwaves have in common?

Tamiku [17]

Answer:

I Will say the Answer is A

Explanation:

5 0

2 years ago

Read 2 more answers

Which of the following adaptations best protects birds from bird catchers?

andrew-mc [135]

Wings to fly. Without flying, birds would be near defenseless.

5 0

3 years ago

Read 2 more answers

The first step in a star formation is ______?

Mariana [72]

First look at the star

8 0

3 years ago

Read 2 more answers

You measure the velocity of a drag racer that accelerates with constant acceleration. You want to plot the data and determine th

Ivenika [448]

Answer:

a) Linear equation

Explanation:

Definition of acceleration

$a=\frac{dv}{dt}\\$

if a=constant and we integrate the last equation

$v(t)=v_{o}+a*t$

So the relation between the time and the velocity is linear. If we plot the velocity in function of time, the plot is a line, and the acceleration is the slope of this line.

8 0

3 years ago

The world will face energy crisis in near future justify this statement

jeka57 [31]

Answer:

Nowadays most of our works are being done through different types of energy which are non-renewable. People are wasting lot of energy (hydel, dolar etc.) due to which in future we can face energy crisis.

5 0

3 years ago