Question

1 point 7. A toy goes around a circular track thrice every minute. The radius of the circular track is 84 m; find the speed of the toy. O (a) 26.4 m/s O (b) 3.4 m/s O (c) 2.93 m/s 0 (d) 28.4 m/s O () None of these​

Answer 1

Explanation:

Correct option is

C

T/2

aC=mRω2=mR∗4π2/T2

$$ 8a_C = m 2R  * 4\pi^2 / T' ^2 $$

Dividing,

8=(2/T′2)∗(T2/1)=2T2/T′2

T′=T2/4=T/2

So option C is correct.

Answer 2

Answer:

answer is C

I hope this answer is right