Our tutors are from top schools around the world, and they are waiting for you 24/7, anytime, anywhere.
Homework- One to One Solutions
Understand concepts to solve better
Get your doubts solved instantly
Please update the Email address in the profile section, to refer a friend
Physics
Grade-9
Easy
Question
“The rougher the surface, the faster an object will travel over the surface.”
True
False
Hint:
A rough surface will have more friction because on the rough surface there will be more irregularities
The correct answer is 'False'.
A rough surface will have more friction because on the rough surface there will be more irregularities. They will cause interlocking which in turn creates more frictional force. For a smooth surface, irregularities and interlocking is less and hence has very less friction.
So If more friction is very high then object will move slower