Question

2)
Answer the following questions in one word or one sentence :

(a) A vehicle is moving at a speed of 5 ms. What is the speed of the vehicle in kmh'?
(b) What is the dimensional formula for force, using the relation : Force = mass * acceleration?
(C) How many fundamental quantities are there in (i) Mechanics? (ii) Physics?
(d) The mean value for measurement of diameter of a sphere is 1.24 cm and the error in the measurement is 0.02 cm.
Express the measured value of the diameter of the sphere in proper form.
(e) How many significant figures are there in the number 6.302?​

Answer 1

Answer:

(a) 18 km/h

(b) MLT - 2

(c) (I) 3 fundamental quantities

(ii) 7

(d)

(e) 4