Fresh start fuck it Flashcards
1
Q
What do you call the component of weight acting normal to a slope
A
mg cosθ
2
Q
What do you call the Component of weight acting down a slope
A
mg sinθ
3
Q
A person stands on bathroom scales in a lift.
The scales show a reading greater than the person’s weight.
What is the lift doing?
A
downwards with decreasing speed
4
Q
A person stands on a weighing machine in a lift. When the lift is at rest, the reading on the
weighing machine is 700N.
The lift now descends and its speed increases at a constant rate.
The reading on the weighing machine is now?
A
a constant value lower than 700N
