Question

A solar-powered car has a kinetic energy of 110250 J. Its mass is 180 kg. Work out how fast the car is travelling Enter a number m/s​

Answer 1

To find the solar-powered car's velocity, we use the kinetic energy formula, rearrange it to solve for velocity, and calculate that it is travelling at 35 m/s.

Step-by-step explanation:

To determine how fast the solar-powered car is travelling, we can use the formula for kinetic energy (KE), which is given by:

KE = \( \frac{1}{2}mv^2 \)

Where:

• m is the mass of the car
• v is the velocity of the car
• KE is the kinetic energy of the car

We know:

• KE = 110250 J
• m = 180 kg

Let's solve for v:

\( v = \sqrt{\frac{2 \cdot KE}{m}} \)

\( v = \sqrt{\frac{2 \cdot 110250}{180}} \)

\( v = \sqrt{1225} \)

v = 35 m/s

The solar-powered car is travelling at 35 meters per second.

Answer 2

Answer: Velocity = v = 35 m/s

Step-by-step explanation:

Kinetic energy of an object is defined as the energy possess by an object due to its motion. Kinetic energy K.E of an object is equal to the half of the mass of that object multiplied by square of the object's velocity.

Mathematically,

v = 35 m/s