A particle moves rom a point `vecr_1=(2m)veci(3m)vecj` to another point `vecr_2=(3m)veci+(2m)vecj` during which a certain force `vecF(5N)veci+(5N)vecj` acts on it. Fikd the work doen by the force on the particle during the displcement.

A particle moves rom a point vecr_1=(2m)veci+(3m)vecj to another point vecr_2=(3m)veci+(2m)vecj during which a certain force vecF=(5N)veci+(5N)vecj acts on it. Find the work done by the force on the particle during the displacement.

Find the moment of a force , vecF=3veci+2vecj acting at point vecr=veci+2veck about a point of position vector vecr=veci+vecj .

A particle acted on by constant forces 4veci+vecj-3veck and 3veci+vecj-veck is displaced from the point veci+2vecj+3veck to the point 5veci+4vecj+veck. Find the total work done by the forces

A particle acted on by constant forces 4veci+vecj-3veck and 3veci+vecj-veck is displaced from the point veci+2vecj+3veck to the point 5veci+4vecj+veck. Find the total work done by the forces

A particle acted on by constant forces 4veci+vecj-3veck and 3veci+vecj-veck is displaced from the point veci+2vecj+3veck to the point 5veci+4vecj+veck. Find the total work done by the forces

Find the torque of a force 7veci+ 3vecj - 5veck about the origin. The force acts on a particle whose position vector is veci-veci +veck .

Two particles having position vectors vecr_(1)=(3veci+5 vecj)m and vecr_(2)=(-5veci+3 vecj)m are moving with velocities vecV_(1)=(4hati-4hatj)ms^(-1) and vecV_(2)=(1hati-3hatj)ms^(-1) . If they collide after 2 seconds, the value of a is