Question

A car moving with a constant speed of 10 m/ s covers 2 round of a circular track in 10 seconds. find the radius of the circular track

Answer 1

Answer:

r=10cm,v=10m/s

And the length of the rigid rod is 1m

So,

Tsinθ=

r

mv

2

...1

Tcosθ=mg....2

Dividing equation 1 by 2 then we get,

tanθ=

rg

v

2

10×10

10

2

=1

θ=tan

−1

1=45

0

Answer 2

Answer:

50/pie=r

Step-by-step explanation:

circumference=10×10

=100

100=2×pie×r

50/pie=r

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