Describe the various types of motions observed in bodies.

3

(a)

Give some points of differences between distance and displacement

3

(a)

Give two differences between distance and displacement

3

(a)

Define the term average speed.

3

(a)

Define acceleration .Is it a scalar or a vector quantity?

3

(a)

Deduce the relation:s = ut + \(\frac { 1 }{ 2 } at^{ 2 }\) where the symbols used have their usual meanings

3

(a)

Establish the relation \(v^{ 2 }-u^{ 2 }=2as\) , where 'u' is the initial velocity, 'v' the final velocity 'a' the uniform acceleration and 's' is the distance covered by the body. 

3

(a)

An athlete completes one round of a circular track of diameter 200 m in 40 s. What will be the distance covered and the displacement at the end of 2 minutes 20 s?

3

(a)

Joseph jogs from one end A to the other end B of a straight 300 m road in 2 minutes 30 seconds and then turns around and jogs 100 m back to point C in another 1 minute. What are Joseph’s average speeds and velocities in jogging
(a) from A to B and
(b) from A to C?

3

(a)

Abdul, while driving to school, computes the average speed for his trip to be 20 km h^–1. On his return trip along the same route, there is less traffic and the average speed is 30 km h^–1. What is the average speed for Abdul’s trip?

3

(a)

On a 100 km track , a train travels the first 30 km at a uniform speed of 30 km \(h^{ -1 }\)How fast must the train travel the next 70 km so as to average 40 km \(h^{ -1 }\) for the entire trip?

5

(a)

A scotter starts from rest moves in a straight line with a constant acceleration and covers a distance of 64 m in 4s.
(i) Calculate its acceleration and its final velocity.
(ii) At what time the scooter had covered half the total distance?

5

(a)