Question

A motorcycle with the following specification was tested on an inertial dynamometer with a
steel hollow cylinder 0.75m long, Outer diameter of 0.4m and an inner diameter of 0.3m.
Vehicle specifications:
Vehicle Mass = 169kg
Rider Mass = 75kg
Cd*A = 0.35m?
Rolling resistance of tires = 0.01
The Cd*A value given above is of the rider in the prone position and this value is found to be
22% higher for the rider in the upright position.
The test revealed that the motorcycle was capable of rotating the roller with an angular
acceleration of:
a(r)
ale) = {
0 < r < 1300
1300 < r < 29 10
|(2x
* 10").r-149​

Answer 1

For 1 minute, distance, d travelled is:

d=ht

0

+

2

1

at

2

=

2

1

×10×(60)

2

=

2

36000

=18000 mt

v=u+at=10×60=600 m/s

Now, for max m height:

v

1

2

=4

1

2

−2gs(v

1

=v)

⇒s=

2g

(600)

2

=

2×10

600×600

=18000 mt

⇒ Total attitude =d+s=18000+18000

=36000 m

=36 Km