Answer:
a) Clockwise
b) τ = 4.67 N-m
Explanation:
Given
m = 7 Kg
R = 17 cm = 0.17 m
μ = 0.4
We use the formula
τ = R*F*Sin ∅ = R*(μ*m*g)*Sin ∅
⇒ τ = (0.17 m)*(0.4*7 Kg*9.81 m/s²)*Sin 270° = - 4.67 N-m
(Clockwise)
Answer:
All three pendulum will attain same velocity
Explanation:
All three pendulum will attain same velocity irrespective of their mass difference in isolated system (means where air drag are negligible) and at same length
As you know when velocity is calculated we can not take mass into account.
Scientists don't use evidence to support theories. Theories are offered to explain evidence.