Question

Calculate speed and velocity for the following casesa)
A boy travels from D to A, A to B, B to C and C to D in 30 s

b)John walks from A to B and then to C in 50 s

c)A cyclist completed the semicircular arc from A to B with diameter 14 m in 2 min

Answer 1

Answer:

We find distance taken by object;

A to B =10 - 2 = 8m

B to C = 10 - 2 = 8m

C to D = 10 - 6 = 4m

Total distance taken from point A to D is = 8m + 8m + 4m =20m

Answer 2

Speed = Distance/Time

= Distance of D to D/ 30

Velocity= Displacement/Time

0/30= 0 m/sec

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