contestada

a car of mass 500 kg is moving with an instantaneous speed of 80.0 km/h. what is its kinetic energy

Respuesta :

Kion345

Answer:7.5. 10^4 J

Explanation:

zainsubhani

Answer:

The Kinetic Energy of the car at that instant will be 123,210 Joules.

Explanation:

Given:

Mass=500 Kg

[tex]Speed= 80 km/h=\frac{80*1000}{3600}\ m/s =22.2 m/s[/tex]

Required:

Kinetic energy (K.E)=?

Formula:

[tex]K.E=\frac{1}{2}mv^{2}[/tex]

Where:

m is the mass.

v is the speed.

Solution:

[tex]K.E=\frac{1}{2}mv^{2}\\K.E=\frac{1}{2} *500* (22.2)^{2} \\K.E=123,210 J[/tex]

The Kinetic Energy of the car at that instant will be 123,210 Joules.

Otras preguntas