3 years ago

What are 2 ways the velocity of an object can be changed

Physics

2 answers:

kvasek [131]3 years ago

8 0

Velocity can change when there is a change in direction and speed.

Artemon [7]3 years ago

3 0

1). Change its speed ... slower or faster.

2). Change its direction ... go into a curve or turn a corner.

You might be interested in

PLEASE HELP A cup of water and a swimming pool full of water are at 24°C. The _____ of the swimming pool is higher. 1.heat conte

Dimas [21]

Answer:

4. kinetic energy

4 0

3 years ago

What would happen if both the radius and mass of a planet were cut in half

Shtirlitz [24]

Explanation:

According to formula

g = GM/R^2

when mass is halved the value of g becomes half but when radius is halved the value of g increases 4 times.

As a result of both value of g becomes twice.

5 0

2 years ago

A 2-kg wheel rolls down the road with a linear speed of 15m/s. Find its trwansitional and rotational kinetic energies.

Elza [17]

Answer:

The translational kinetic energy is 225 J

The rotational kinetic energy is 225 J

Explanation:

Given;

mass of the wheel, m = 2-kg

linear speed of the wheel, v = 15 m/s

Transnational kinetic energy is calculated as;

E = ¹/₂MV²

where;

M is mass of the moving object

V is the velocity of the object

E = ¹/₂ x 2 x (15)²

E = 225 J

Rotational kinetic energy is calculated as;

E = ¹/₂Iω²

where;

I is moment of inertia

ω is angular velocity

$E = \frac{1}{2} I \omega^2\\\\E = \frac{1}{2} *mr^2*(\frac{v}{r})^2\\\\E = \frac{1}{2} *mr^2*\frac{v^2}{r^2} \\\\E = \frac{1}{2}mv^2$

E = ¹/₂ x 2 x (15)²

E = 225 J

Thus, the translational kinetic energy is equal to rotational kinetic energy

6 0

2 years ago

Melting, freezing, and boiling are _____________ changes. Question 3 options: A. compound

vfiekz [6]

Melting freezing and boiling are molecular changes

3 0

2 years ago

Read 2 more answers

What is the working principle of an electric motor?

slava [35]

The answer B homie trust

5 0

2 years ago

Read 2 more answers