Q. 42 : The maximum safe speed of a vehicle on a circular track is 15 km/hr. When the track becomes wet, the maximum safe speed is 10 km/hr. The ratio of coefficient of friction of the dry track to that of the wet track is. (a) 3: 2 (c) 9 : 4 (b) 2: 3 (d) 4 : 9
Q. 42 : The maximum safe speed of a vehicle on a circular track is 15 km/hr. When the track becomes wet, the maximum safe speed is 10 km/hr. The ratio of coefficient of friction of the dry track to that of the wet track is. (a) 3: 2 (c) 9 : 4 (b) 2: 3 (d) 4 : 9
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![Q. 42 : The maximum safe speed of a vehicle on
a circular track is 15 km/hr. When the track
becomes wet, the maximum safe speed is 10
km/hr. The ratio of coefficient of friction of the
dry track to that of the wet track is.
(а) 3 : 2
(c) 9 : 4
(b) 2: 3
(d) 4 : 9](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5266c8e8-d7c0-43d8-a679-a58d606069e0%2Fab36354e-8853-4439-b9b5-c5fd9ccbbe07%2F3rn4h5b_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Q. 42 : The maximum safe speed of a vehicle on
a circular track is 15 km/hr. When the track
becomes wet, the maximum safe speed is 10
km/hr. The ratio of coefficient of friction of the
dry track to that of the wet track is.
(а) 3 : 2
(c) 9 : 4
(b) 2: 3
(d) 4 : 9
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