A puck is tied to a string and whirled in a horizontal circle on a frictionless table at

PHYSICS · Single correct · A Level · Physics · Further mechanics and thermal physics · Further mechanics and thermal physics

Problem

0.50\,\text{kg}

puck is tied to a

0.80\,\text{m}

string and whirled in a horizontal circle on a frictionless table at

4.0\,\text{m}\!\cdot\!\text{s}^{-1}

. What is the magnitude of the tension in the string during the motion? (a)

6.4\,\text{N}

(b)

4.9\,\text{N}

(c)

10\,\text{N}

(d)

2.5\,\text{N}