Question

Two particles are projected simultaneously with different speed from the same point as
shown in Fig. Select the incorrect statement.
(0)
Their relative acceleration is zero.
Their relative velocity is constant.
Their relative velocity is along vertical direction.
Their relative velocity is along horizontal direction.​

Answer 1

The incorrect statement is 'Their relative velocity is along the horizontal direction.'

Explanation:

a). The first statement is true because the acceleration of two particles proceeding in gravitational effect always equals zero regardless of motion's direction.

b). The second statement asserts a true claim that the relative velocity remains constant as the particles are projected at the same time.

c). The third statement is also correct as the relative velocity is along the vertical side where one particle is moving up and the another is proceeding down.

d). The last statement is incorrect because the relative velocity along x-axis is zero(9/5 - 9/5 = 0).

Learn more: Velocity

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