CBSE Class 11-science - Common Forces in Mechanics Videos
Common Forces in Mechanics
This video explains body in equilibrium and resolving forces acting on a body in equilibrium.
-
A block of mass m is placed on a wedge as
shown. Find difference between maximum and
minimum (a(max) – a(min) ) horizontal rightward
acceleration of wedge for which block remains
at rest with respect to wedge.
(A) 10g/9
(B) g/9
(C) g
(D) None of these
- find the velocity in rms
- Assertion :pseudo force in an imaginary force which is recognized only by a non inertial observer to explain the physical situation according to Newton's laws Reason:pseudo force has no physical origin of the the basic interaction in nature, it doesn't exist as on action reaction .
- What are contact forces? Give some examples of contact and non contact forces.
- What is Normal Reaction? Explain with diagram.
- Give the formula of Spring Force and state the significance of the negative sign.
- A gardener is mowing a lawn by pushing and pulling the machine. In which condition is the normal force highest?
- Consider a book lying on a table. Which forces are acting on the book?
- What do you mean by equilibrium under concurrent forces?
- Two forces of 5 kg and 12 kg are connected at the two end of the light inextensible string that passes over a frictionless pulley. Find the acceleration of the masses and the tension in the string, when the masses are released.
