2 years ago

A sports car accelerates from 0 to 25 meters per second in 4 seconds. What is its acceleration?

Physics

1 answer:

WITCHER [35]2 years ago

3 0

Answer:

6.25 ms²

Explanation:

..................

You might be interested in

Flying plane

Fittoniya [83]

Answer

a. These are objects in motion that have kinetic energy.

Explanation:

5 0

3 years ago

Read 2 more answers

An object exhibits SHM with an angular frequency w = 4.0 s-1 and is released from its maximum displacement of A = 0.50 m at t =

vivado [14]

Explanation:

It is given that,

Angular frequency, $\omega=4\ s^{-1}$

Maximum displacement, A = 0.5 m at t = 0 s

We need to find the time at which it reaches its maximum speed. Firstly, we will find the maximum velocity of the object that is exhibiting SHM.

$v_{max}=A\times \omega$

$v_{max}=0.5\times 4$

$v_{max}=2\ m/s$ ............(1)

Acceleration of the object, $a=\omega^2A$

$a=4^2\times 0.5$

$a=8\ m/s^2$ ...............(2)

Using first equation of motion we can calculate the time taken to reach maximum speed.

$v=u+at$

$t=\dfrac{v-u}{a}$

$t=\dfrac{2-0}{8}$

t = 0.25 s

So, the object will take 0.25 seconds to reach its maximum speed. Hence, this is the required solution.

4 0

3 years ago

In which situations is gravitational potential energy present? Check all that apply. A person walks up a flight of stairs. A per

Dimas [21]

The first, fourth and sixth options. A person walks up a flight of stairs, wind lifts a balloon into the air, and a weightlifter holds a barbell straight overhead.

7 0

3 years ago

Read 2 more answers

Because light travels in a straight line and casts a shadow, Isaac Newton hypothesized that light is

KonstantinChe [14]

A stream of particles

3 0

3 years ago

Which statement best reflects the approach of Gestalt psychology?

GarryVolchara [31]

Gestalt psychology is a a theory of mind of the Berlin School of experimental psychology. It tries to understand the laws of our ability to acquire and maintain meaningful perceptions in an apparently chaotic world. It proposes that the whole of an object or scene is more important than its individual parts.

3 0

3 years ago

Read 2 more answers