Question

class 9 physics, can anyone help?

Answer 1

Answer:

(a)0.5m/s

(b)25*10^-3

(c) acceleration

(d)4m

Explanation:

(a)velocity at A is 0.5 or 1/2 since x-coordinate is time which is 4s and y-coordinate is velocity which is 2.

(b) momentum is product of mass and velocity

Mass is 50g hence 0.050kg or 50*10^-3

and velocity is 0.5

hence there product is 25*10^-3 or 0.025

(c)slope of the graph represents acceleration

(d)area under graph is distance hence

1/2*2*4(area of triangle) which is 4

Thank you

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