1800-150-456-789
FlagBACK
Flag Mechanics> An object of mass m is kept on a horizont...
question mark

An object of mass m is kept on a horizontal platform is gradually inclined. The object just starts slipping when the angle of inclination theta of the platform with the horizontal becomes r theta. What is the force of friction experienced by the object whena. Platform is horizontalb. Angle of inclination theta of platform is less than theta r but more than 0c. Angle of inclination theta of platform is equal to r thetad. Angle of inclination theta of platform is greater than r thetaConsider the coefficient of static friction to be equal to the coefficient of kinetic friction

Anonymous , 5 Years ago
Grade 11
anser 1 Answers
Ansh Agrawal

Last Activity: 5 Years ago

See
1) when horizontal no force applied hence no frictional force frictional force=0
2) when theta less than r, no slipping means no force here also frictional force=0
3) when theta=r then frictional force=static coefficient *mgcosr
4)when starts slipping then frictional force=kinetic coefficient*mgcosr

Provide a better Answer & Earn Cool Goodies

Enter text here...
star
LIVE ONLINE CLASSES

Prepraring for the competition made easy just by live online class.

tv

Full Live Access

material

Study Material

removal

Live Doubts Solving

assignment

Daily Class Assignments


Ask a Doubt

Get your questions answered by the expert for free

Enter text here...

Other Related Questions on Mechanics

question mark
A metal strip clamped at one end vibrates with a frequency of 20 Hz and amplitude of 5 mmat the free end, where a small mass of 2 g is positioned. determine(i) The velocity of the end when passing through the zero position(ii) The acceleration at maximum displacement(iii) The maximum kinetic energy of the mass
Mechanics
2 Answer Available

Last Activity: 2 Year ago(s)

question mark
An object of mass m = 0.25 kg oscillates in a fluid at the end of a vertical spring of springconstant kH = 85 N/m, see Fig.1. The effect of the fluid resistance is governed by thedamping constant b = 0.07kg/s.(i) Find the period of the damped oscillation.(ii) By what percentage does the amplitude of the oscillation decrease in each cycle?
Mechanics
1 Answer Available

Last Activity: 2 Year ago(s)

question mark
If a=x² find the displacement at t =3sec if body velocity at t= 0 sec is 0
Mechanics
1 Answer Available

Last Activity: 2 Year ago(s)

question mark
A particle is traveling in a circle of radius R =2.5m and with an angular velocity of 10 rad/s. What is the centripetal acceleration of the particle? The particle begins to slow down with an angular acceleration of -1 rad/s2. After 5 seconds, what is the centripetal acceleration and the tangential acceleration fo the particle?
Mechanics
1 Answer Available

Last Activity: 2 Year ago(s)

question mark
If the acceleration of block A is 5 m/s^2Find the acceleration of block B
Mechanics
1 Answer Available

Last Activity: 2 Year ago(s)