Question

There's my problem PLEASE HELP

Answer 1

Answer : The correct option is, the 5 kg object has more kinetic energy.

Explanation :

Formula used for kinetic energy is:

$K.E=\frac{1}{2}mv^2$

where,

K.E = kinetic energy

m = mass of an object

v = velocity of an object

Now we have to calculate the kinetic energy for 5 kg object with velocity 10 m/s.

$K.E=\frac{1}{2}\times (5kg)\times (10m/s)^2$

$K.E=250J$

Now we have to calculate the kinetic energy for 10 kg object with velocity 5 m/s.

$K.E=\frac{1}{2}\times (10kg)\times (5m/s)^2$

$K.E=125J$

From this we conclude that, 5 kg object with velocity 10 m/s has more kinetic energy as compared to 10 kg object with velocity 5 m/s.

Hence, the correct option is, the 5 kg object has more kinetic energy.

Answer 2

Answer:

The 10 kg object has more kinetic energy

Explanation:

Velocity is more important than mass.