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A solid cylinder rolls down an inclined plane of height 3 m and reaches the bottom of plane with angular velocity, of 2 2–√rads^−1 . The radius of cylinder must be (Take g = 10 ms^−2 )
27
Nov
A solid cylinder rolls down an inclined plane of height 3 m and reaches the bottom of plane with angular velocity, of 2 2–√rads^−1 . The radius of cylinder must be (Take g = 10 ms^−2 ) A solid cylinder rolls down an inclined plane of height 3 m and reaches the bottom of plane [...]
A hollow sphere (i) rolls and (ii) slides down an inclined plane. The ratio of the accelerations in the two cases is
27
Nov
A hollow sphere (i) rolls and (ii) slides down an inclined plane. The ratio of the accelerations in the two cases is A hollow sphere (i) rolls and (ii) slides down an inclined plane. The ratio of the accelerations in the two cases is November 27, 2020 Category: Cengage NEET by C.P Singh , Chapter [...]
A thin uniform circular ring is rolling down an inclined plane of inclination 30^∘ without slipping. Its linear acceleration along the inclined plane will be
27
Nov
A thin uniform circular ring is rolling down an inclined plane of inclination 30^∘ without slipping. Its linear acceleration along the inclined plane will be A thin uniform circular ring is rolling down an inclined plane of inclination 30∘ without slipping. Its linear acceleration along the inclined plane will be November 27, 2020 Category: Cengage [...]
A body of mass m slides down an incline and reaches the bottom with a velocity v. If the same mass was in the form of a ring which rolls down this incline, the velocity of the ring at the bottom would have been:
27
Nov
A body of mass m slides down an incline and reaches the bottom with a velocity v. If the same mass was in the form of a ring which rolls down this incline, the velocity of the ring at the bottom would have been: A body of mass m slides down an incline and reaches [...]
A family uses 8kW of power. (a) Direct solar energy is incident on the horizontal surface at an average rate of 200 W per square metre. If 20% of this energy can be converted to useful electrical energy, how large an area is needed to supply 8kW? (b) Compare this area to that of the roof of a typical house.
27
Nov
A family uses 8kW of power. (a) Direct solar energy is incident on the horizontal surface at an average rate of 200 W per square metre. If 20% of this energy can be converted to useful electrical energy, how large an area is needed to supply 8kW? (b) Compare this area to that of the [...]
A 70kg man stands in contact against the inner wall of a hollow cylindrical drum of radius 3m rotating about its vertical axis. The coefficient of friction between the wall and his clothing is 0.15 . What is the minimum rotational speed of the cylinder to enable the man to remain stuck to the wall (without falling) when the floor is suddenly removed?
27
Nov
A 70kg man stands in contact against the inner wall of a hollow cylindrical drum of radius 3m rotating about its vertical axis. The coefficient of friction between the wall and his clothing is 0.15 . What is the minimum rotational speed of the cylinder to enable the man to remain stuck to the wall [...]
A disc revolves with a speed of 33 3/1 rev/min, and has a radius of 15 cm. Two coins are placed at 4 cm and 14 cm away from the centre of the record. If the coefficient of friction between the coins and the record is 0.15, which of the coins will revolve with the record?
27
Nov
A disc revolves with a speed of 33 3/1 rev/min, and has a radius of 15 cm. Two coins are placed at 4 cm and 14 cm away from the centre of the record. If the coefficient of friction between the coins and the record is 0.15, which of the coins will revolve with the [...]
The rear side of a truck is open and a box of 40 kg mass is placed 5 m from the open end The coefficient of friction between the box and the surface below it is 0.15 On a straight road the truck starts from rest and accelerates with 2m/s^2. At what distance from the starting point does the box fall off the truck ? Ignore the size of the box .
27
Nov
The rear side of a truck is open and a box of 40 kg mass is placed 5 m from the open end The coefficient of friction between the box and the surface below it is 0.15 On a straight road the truck starts from rest and accelerates with 2m/s^2. At what distance from the [...]
A solid cylinder of mass M and radius R rolls without slipping down an inclined plane of length L and height h. What is the speed of its centre of mass when the cylinder reaches its bottom ?
27
Nov
A solid cylinder of mass M and radius R rolls without slipping down an inclined plane of length L and height h. What is the speed of its centre of mass when the cylinder reaches its bottom ? A solid cylinder of mass M and radius R rolls without slipping down an inclined plane of [...]
A block of mass 15kg is placed on a long trolley. The coefficient of static friction between the block and the trolley is 0.18. The trolley accelerates from rest with 0.5ms^−2 for 20s and then moves with uniform velocity. Discuss the motion of the block as viewed by, (a) a stationary observer on the ground. (b) an observer moving with the trolley.
27
Nov
A block of mass 15kg is placed on a long trolley. The coefficient of static friction between the block and the trolley is 0.18. The trolley accelerates from rest with 0.5ms^−2 for 20s and then moves with uniform velocity. Discuss the motion of the block as viewed by, (a) a stationary observer on the ground. [...]