00:01
In this problem we have an object placed on an inclined plane that is given that the weight of the object is 30 newtons on the object of friction force of 8 newtons is opposing the motion.
00:27
Now the angle of inclination for the inclined plane is given as 25 degrees.
00:32
We have to find out the acceleration of the object.
00:35
The other force acting on the object is the normal force acting normal to the surface.
00:41
For this problem define coordinate axis.
00:44
Assume normal to the plane as y axis and parallel to the plane as x axis.
00:49
The block is accelerating with acceleration a along x direction.
00:55
We can write net force along x direction equals mass times the acceleration along x.
01:01
The net force along x direction equals the component of the weight parallel to the plane that is the weight times sine theta minus the friction force equals mass.
01:13
Mass can be written as weight over acceleration due to gravity times the acceleration e...