Question

if a body of mass 5 kg is moving along a straight line with velocity 10 M per second and acceleration 20 m per second find the kinetic energy
$<marquee><b>answer is 110250Joule </marquee>$
$<marquee><b>how we calculate this </marquee>$
$<marquee><b>this is 50 mark question </marquee>$​

Answer 1

QUESTION

If a body of mass 5 kg is moving along a straight line with velocity 10 M per second and acceleration 20 m per second find the kinetic energy.

ANSWER

Given, Mass (m)=5kg

u=0ms-1

v=10ms-1

a= 20ms-2

Now, we know,

K.E = 1/2×mv^2

=>K.E= 1/2 × 5 × 10×10

=>K.E = 250 joules.

thanks

Answer 2

Given:

$m=5kg\\v=10m/s\\a=20m/s^{2}$

To find: kinetic energy

Step-by-step explanation:

Step 1 of 1

The kinetic energy of an object is due to its motion.

It can be calculated by using the formula $K.E=\frac{1}{2} mv^{2}$.

Where m is mass and v is the velocity.

The unit of K.E is $kgm^{2} s^{-2}$, also known as Joules.

Substituting the values:

$K.E=\frac{1}{2} *5*10^{2}\\K.E=\frac{1}{2}* 5*100\\K.E=250J$

THE KINETIC ENERGY IS 250J.