A laboratory device exerts a constant horizontal force of on a glider

PHYSICS · Single correct · A Level · Physics · Measurements and their errors · Measurements and their errors

Problem

A laboratory device exerts a constant horizontal force of

18.0\pm0.2\,\text{N}

on a glider. The glider’s acceleration is measured to be

0.600\pm0.005\,\text{m/s}^2

. Using proper significant figures, what is the glider’s mass and its absolute uncertainty? (a)

(30.0\pm0.6)\,\text{kg}

(b)

(29.7\pm0.6)\,\text{kg}

(c)

(30.0\pm0.4)\,\text{kg}

(d)

(30\pm1)\,\text{kg}