Question

The magnitude of average velocity during revolution through quarter circle
a) 7ms-1
b) 7 2ms -1
c) 0 ms-1
d) 6.3 ms -1​

Answer 1

Answer:

option c

Step-by-step explanation:

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Answer 2

Answer:

7m/s [a]

Step-by-step explanation:

Given that,

Radius = 7 m

Speed = 7 m/s

At constant speed, the acceleration is

We need to calculate the acceleration

Using formula of acceleration

v²

a=___

r

a=v²/r

Where, v = speed

r = radius

Put the value into the formula

a=7²/7 m/s

a=7m/s