FrictionHard
Question
A block of mass 1 kg is stationary with respect to a conveyer belt that is accelerating with 1 m/s2 upwards at an angle of 30o as shown in figure. Which of the following is/are correct?
Options
A.A block of mass 1 kg is stationary with respect to a conveyer belt that is accelerating with 1 m/s2 upwards at an angle of 30o as shown in figure. Which of the following is/are correct?
B.Force of friction on block is 1.5 N upwards.
C.Contact force between the block & belt is 10.5 N.
D.Contact force between the block & belt is 5√3 N.
Solution
(A,C) Block is moving upwards due to friction
fr − mg sin 30 = ma
⇒ fr − 1 × 10 ×
= 1 × 1 ⇒ fr = 6 N
Contact force is the resultant of N and fr
=
=10.5 NCreate a free account to view solution
View Solution FreeMore Friction Questions
Car is accelerating with acceleration = 20 m/s2. A box of mass m = 10 kg that is placed inside the car, it is put in con...When the two surfaces are coated with the lubricant, then they will :...Starting from rest a body slides down a 45o inclined plane in twice the time it takes to slide down the same distance in...A system is shown in the figure, which is released from rest. There is no friction between ground and mass 5m. The coeff...A plank of mass m1 = 8 kg with a bar of mass m2 = 2 kg placed on its rough surface, lie on a smooth floor of elevator as...