Physics

Problem

A small metal block of mass 150 g slides without friction on a horizontal surface. At a certain instant its velocity is given by the vector

(30\,\mathbf{i}+40\,\mathbf{j})

cm/s, where

\mathbf{i}

and

\mathbf{j}

are unit vectors along the

x

and

y

axes respectively. Attempt the following: a. (i) Convert the given mass and velocity components into SI units. b. (ii) Determine the

x

and

y

components of the block’s linear momentum in SI units. c. (iii) Calculate the magnitude of the momentum and the angle it makes with the positive

x

-axis.