Question

1. Write one example for each of the following type of
motion.
Rectilinear ii) Circular iii) Periodic
iv) Circular and periodic v) Linear vi) Rotatory
vii) Vibratory

2. What kind of motion is shown in the following:
Earth moving about its own axis
Movement of branches of trees
Chain of a bicycle
Potter’s wheel

Answer 1

Answer:

Assertion: The sides of a triangle are in the ratio of 25: 14: 12 and its perimeter is 510 cm. Then the area. of the triangle is 4449.08 cm2.