While practising ice-hockey

PHYSICS · Multi-part · CBSE · Physics · Force and Laws of Motion · Force and Laws of Motion

Problem

While practising ice-hockey, a player exerts a constant horizontal force of

8\,\text{N}

on a crate that slides without friction on the ice. The crate is observed to accelerate at

0.40\,\text{m\,s}^{-2}

. (i) Calculate the inertial mass of the crate. (ii) If the same horizontal force is applied to this crate on the surface of the Moon where

g_{\text{Moon}} = 1.6\,\text{m\,s}^{-2}

, find the acceleration produced. (iii) Determine the weight of the crate on the Earth’s surface where

g = 9.8\,\text{m\,s}^{-2}

. State your answer with the proper unit.