A 150 g mass has a velocity `vec(v)=(2hat(i)+6hat(j))m//s` at a certain instant. What is its kinetic energy?

A ball of mass '2m' moving with velocity u hat(i) collides with another ball of mass 'm' moving with velocity - 2 u hat(i) . After the collision, mass 2m moves with velocity (u)/(2) ( hat(i) - hat(j)) . Then the change in kinetic energy of the system ( both balls ) is

A ball of mass '2m' moving with velocity u hat(i) collides with another ball of mass 'm' moving with velocity - 2 u hat(i) . After the collision, mass 2m moves with velocity (u)/(2) ( hat(i) - hat(j)) . Then the change in kinetic energy of the system ( both balls ) is

A particle of mass 2sqrt(5) Kg is having velocity vec v=(2hat i+hat j)m/s " and acceleration vec a=(hat j-hat i)m/s^(2) " at some instant of time. At same instant find component of net force (in N) parallel to velocity.

A charged particle of specific charge (i.e charge per unit mass) 0.2 C/kg has velocity 2 hat(i) - 3 hat(j) (m/s) at some instant in a uniform magnetic field 5 hat(i) + 2 hat(j) (tesla). Find the acceleration of the particle at this instant

A charged particle of specific charge (i.e charge per unit mass) 0.2 C/kg has velocity 2 hat(i) - 3 hat(j) (m/s) at some instant in a uniform magnetic field 5 hat(i) + 2 hat(j) (tesla). Find the acceleration of the particle at this instant

A particle of mass 2 kg is moving with velocity vec(v)_(0) = (2hat(i)-3hat(j))m//s in free space. Find its velocity 3s after a constant force vec(F)= (3hat(i) + 4hat(j))N starts acting on it.

A particle of mass 2 kg is moving with velocity vec(v)_(0) = (2hat(i)-3hat(j))m//s in free space. Find its velocity 3s after a constant force vec(F)= (3hat(i) + 4hat(j))N starts acting on it.

A particle of mass 2 kg is moving with velocity vec(v)_(0) = (2hat(i)-3hat(j))m//s in free space. Find its velocity 3s after a constant force vec(F)= (3hat(i) + 4hat(j))N starts acting on it.

A particle is moving in x-y plane. At an instant, it has velocity (4 hat (i) + 4 hat(j)) m//s and acceleration (3 hat(i) + 5 hat(j)) m//s^(2) At that instant, the radius of curvature of its path will be :

A particle is moving in x-y plane. At an instant, it has velocity (4 hat (i) + 4 hat(j)) m//s and acceleration (3 hat(i) + 5 hat(j)) m//s^(2) At that instant, the radius of curvature of its path will be :