(A) A flywheel 1.2 m in diameter accelerates uniformly
from rest to 2000 rev/min in 20 s. What is the angular
acceleration?
[12 marks]
(B) A car of mass 1450 kg travels along a flat curved road
of radius 450 m at a constant speed of 50 km/hr. Assuming that the
road is not banked, what force must the tyres exert on the road to
maintain motion along the curve?
A A Flywheel 1 2 M In Diameter Accelerates Uniformly From Rest To 2000 Rev Min In 20 S What Is The Angular Accelerat 1 (97.46 KiB) Viewed 53 times
QUESTION 3 (A) A flywheel 1.2 m in diameter accelerates uniformly from rest to 2000 rev/min in 20 s. What is the angular acceleration? [12 marks] (B) A car of mass 1450 kg travels along a flat curved road of radius 450 m at a constant speed of 50 km/hr. Assuming that the road is not banked, what force must the tyres exert on the road to maintain motion along the curve? [13 marks]
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