Table of Contents
Choose the correct options for the following questions.
A 1000 kg car travelling with a speed of 90 km/hr turns around a curve of radius 0.1 km. The necessary centripetal force comes out to be:
Difficulty: Easy
A:
$8.1 \times 10^{7} N$
B:
625 N
C:
6250 N
D:
None
If a toy car moves with a uniform speed of 2 m/sec in a circle of 0.4 m radius. His angular velocity in rev/sec is:
Difficulty: Easy
A:
$10 \pi$
B:
0.8
C:
$0.2 \pi$
D:
None
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