Question

Calculate the kinetic energy of a 107, mg raindrop moving at a speed of 4.7- Round your answer to 2 significant digits.

Answer 1

1.2 × 10⁻³ J

Step-by-step explanation:

Given data

• Mass of the raindrop (m): 107 × 10⁻⁶ kg = 1.07 × 10⁻⁴ kg

• Speed (v): 4.7 m/s

• Kinetic energy (K): to be determined

We can determine the kinetic energy of the raindrop using the following expression.

K = 1/2 × m × v²

K = 1/2 × 1.07 × 10⁻⁴ kg × (4.7 m/s)²

K = 1.2 × 10⁻³ J

The kinetic energy of the raindrop is 1.2 × 10⁻³ J.