4.For Tutor Adil B Only! For Tutor Adil B Only! For Tutor Adil B Only! For Tutor Adil B Only! For Tutor Adil B Only!
7.Photon has mass or not? I am confused, since we say, it has zero rest mass but how does it is affected by gravity then?
The force that keeps object at rest is known as static friction. It is equal to the product of normal force and coefficient of static friction.
Equation for static friction = Normal force Coefficient of static friction
Formula: Fs = N μs
Where N is normal force and sis coefficient of static friction
Static frictional force can be calculated by using normal force and coefficient of static friction.
Let Normal force = 50 N
Coefficient of static friction μs= 0.2
Plugging value of N and μs in the formula we get static frictional force.
In this way we have solved for static frictional force.