1.

A girl runs along a circular track of radius 5 m starting from point A. What will be the distance travelled by her and speed if she comes back to the initial position in 300 s

Answer»

Solution :SINCE the girl comes BACK to the original position, her distance
WOULD be the circumference of the `2 x pi xx R= 2 xx 3.14 xx 5 = 31.4 m`
Time = 300 s
`"Speed" = ("Distance travelled")/("Time taken ")= 31.4//300= 0.1046m//s`


Discussion

No Comment Found