Advertisements
Advertisements
Question
Name the force acting away from the centre of circular path.
Advertisements
Solution
Centrifugal force acts away from the centre of circular path.
APPEARS IN
RELATED QUESTIONS
Write the expression for work done by a force.
The power of a motor is 40 kW. At what speed can the motor raise a load of 20,000 N?
When is the work done by a force on a body : (a) positive, (b) negative, and (c) zero?
How many watts equal one horse power?
An object is dropped from a height H. when is its
(i) P.E. maximum,
(ii) K.E. maximum,
(iii) P.E. = K.E.?
Give an example
Light energy changes to electrical energy.
A block of mass 30 kg is pulled up a slope, as shown in diagram with a constant speed, by applying a force of 200 N parallel to slope.
A and B are initial and final positions of block.
(i) Calculate the work done by force in moving the block from A to B.
(ii) Calculate P.E. gained by block. [g=10ms-2]
An electric motor pump is 60% efficient and is rated 2.5 H.P. Calculate the maximum load it can lift through a height of 10m in 8 sec. (1 H.P. = 750 W).
