If two vectors Avec and Bvec are at an angle theta != 0°, then

If an object is at rest, then the time (X-axis) versus distance (Y-axis) graph

In spherical polar coordinates (r, theta, phi), theta denotes the polar angle around z-axis and phi denotes the azimuthal angle raised from x-axis. Then the y-component of Pvec is given by

What is the effect of pressure of a human body on sand ?

The position vector of a particle is r⃗ = 2t² x̂ + 3t ŷ + 4 ẑ. Then the instantaneous velocity v⃗ and acceleration a⃗ respectively lie

A heavy body and a light body have equal kinetic energy. Then