The speed-time graph of a car is given below. Study the graph and answer the following questions :
a.What is the type of motion represented by OA ?
b.Find acceleration from B to C.
c.Calculate the distance covered by the car from A to B.
CBSE Class IX Science SA 2 (3 Marks)
Answers
Answered by
20
(a) Uniform motion
( 0 - 60)
Hence, distance covered by the car from A to B is 2400 m.
(b) VC - VB
( 0 - 60)
a = ________________ - 80 - 60
t
= - 3 m/s²
Hence, acceleration from B to C is - 3 m/ s².
(c) Distance = Speed x Time
= 60 x (60 - 20)
= 60 x 40
= 2400 m
Hence, distance covered by the car from A to B is 2400 m.
Similar questions