|
What are the different methods to reduce friction?
|
|
0
|
6291
|
March 22, 2018
|
|
Give examples to show that friction is both a friend and a foe
|
|
0
|
1885
|
March 22, 2018
|
|
Two friends are trying to push a heavy load as shown in figure
|
|
0
|
4781
|
March 22, 2018
|
|
Give reason We have two identical metal sheets
|
|
0
|
2929
|
March 22, 2018
|
|
Explain why sliding friction is less than static friction
|
|
0
|
2237
|
March 22, 2018
|
|
When the cutting edge of a knife is put against a fast rotating stone to sharpen it, sparks are seen to fly. Explain the reason
|
|
0
|
4594
|
March 22, 2018
|
|
Iqbal has to push a lighter box and Seema has to push a similar heavier box on the same floor. Who will have to apply a larger force and why?
|
|
0
|
11927
|
March 22, 2018
|
|
Explain why sportsmen use shoes with spikes
|
|
0
|
12209
|
March 22, 2018
|
|
You spill a bucket of soapy water on a marble floor accidentally
|
|
0
|
1228
|
March 22, 2018
|
|
. Suppose your writing desk is tilted a little. A book kept on it starts sliding down
|
|
0
|
3411
|
March 22, 2018
|
|
A father and son pushed their car to bring it to the side of road as it had stalled in the middle of the road
|
|
0
|
1494
|
March 22, 2018
|
|
A marble is allowed to roll down an inclined plane from a fixed height
|
|
0
|
2081
|
March 22, 2018
|
|
Cartilage is present in the joints of our body which helps in their smooth movement
|
|
0
|
3964
|
March 22, 2018
|
|
Is there a force of friction between the wheels of a moving train and iron rails?
|
|
0
|
3142
|
March 22, 2018
|
|
You might have noticed that when used for a long time, slippers with rubber soles become slippery. Explain the reason
|
|
0
|
3109
|
March 22, 2018
|