There are four forces acting on a block as shown in the figure ,The magnitude and direction of the net force acting on it is _______.
A firefighter who weighs 689 N slides down a vertical pole with an acceleration of 2.00" m"//"s"^(2) , directed downward. What are the (a) magnitude and (b) direction (up or down) of the vertical force on the firefighter from the pole and the ( c ) magnitude and (d) direction of the vertical force on the pole from the firefighter ?
The current carried by a horizontal wire of length 0.6 m and mass 5 xx 10^(-3) kg/m is 5 A. Calculate the magnitude and direction of magnetic field which can support the weight of the wire. (Take g = 10 m//s^(2) )
A small marble is projected with a velocity of 10 m//s in a direction 45^(@) from the y-direction on the smooth inclined plane. Calculate the magnitude v of its velocity of after 2 s (Take g = 10 m//s^(2))
Suppose that you drop a marble of mass m into a jar of honey. As the marble sinks, its speed is effectively constant., What is the net force on the marble us it sinks ? What are the magnitude and direction of the forces exerted by the honey ?
Calculate the torque (magnitude and direction) about point O due to the forces as shown. In each case, forces and rod lie in the plane of the paper. ( a ) ( b ) ( c ) ( d )
