Question

A force vector applied on a mass is represented as `vecF = 6hati - 8hatj + 10hatk` N and accelerates the mass at 1 ms^-2. The mass of the body is ______.

Options

• 10 kg

• 20 kg

• `2sqrt10` kg

• `10sqrt2` kg

Answer 1

A force vector applied on a mass is represented as `vecF = 6hati - 8hatj + 10hatk` N and accelerates the mass at 1 ms^-2. The mass of the body is `underlinebb(10sqrt2)` kg.

Explanation:

m = `|vecF|/a`

= `sqrt(6^2 + 8^2 + 10^2)/1`

= `10sqrt2` kg