Question

what is the kinetic energy of 35 kg object moving at the velocity of 12
m/sec​

Answer 1

Answer:

• The kinetic energy of a object is 2520J.

Explanation:

Given,

• Mass of object (m) = 35 kg
• Velocity of object (v) = 12 m/s

As we know that,

$\purple\bigstar$ K.E = 1/2 × mv²

[ Putting values ]

↪ K.E = 1/2 × 35 × (12)²

↪ K.E = 1/2 × 35 × 144

↪ K.E = 35 × 72

↪ K.E = 2520J $\red\bigstar$

For information:

• P.E = mgh
• M.E = P.E + K.E

Answer 2

Explanation:

Given:

• Mass of object (m) = 35 kg
• Velocity (v) = 12 m/s

To find:

• Kinetic energy of a moving object (KE) = ?

Solution:

$we \: know \: that \: kinetic \: energy \: = \: \frac{1}{2} \times m \: \times {v}^{2}$

$= > \: \frac{1}{2} \times \: 35 \: \times {(12)}^{2}$

$= > \: \frac{1}{2} \times \: 35 \: \times \: 144$

$= > \: 35 \: \times \: 72$

$= > \: 2520 \: </em></strong><strong><em>J</em></strong><strong><em>$

Hence, the kinetic energy of object = 2520 Joules

Hope it helped you dear...