Laws of Motion-Impulse (NEET Physics): Questions 1 - 2 of 2

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Question number: 1

» Laws of Motion » Impulse

MCQ▾

Question

The magnitude of the force (in newton) acting on a body varies with time t (in microsecond) as shown in fig. AB, BC, and CD are straight line segments. The magnitude of the total impulse of the force on the body from t = 4 us to t = 16 us is

Graph explaining force vs time graph

Graph Explaining Force vs Time Graph

In above figure we show force vs time graph, we also so that magnitude of force in both direction

Choices

Choice (4) Response
a.

5 10 -5 N. s

b.

5 10 -4 N. s

c.

5 10 -2 N. s

d.

5 10 -3 N. s

Question number: 2

» Laws of Motion » Impulse

Appeared in Year: 2016

MCQ▾

Question

A rigid ball of mass m strikes a rigid wall at 60° and gets reflected without loss of speed as shown in the figure below. The value of impulse imparted by the wall in the ball will be –

Quadrilateral poly1 Quadrilateral poly1: Polygon A, B, C, DQuadrilateral poly1 Quadrilateral poly1: Polygon A, B, C, DAngle? Angle? : Angle between E, F, E’Angle? Angle? : Angle between E, F, E’Angle? Angle? : Angle between E’_1, F, ESegment a Segment a: Segment [A, B] of Quadrilateral poly1Segment b Segment b: Segment [B, C] of Quadrilateral poly1Segment c Segment c: Segment [C, D] of Quadrilateral poly1Segment d Segment d: Segment [D, A] of Quadrilateral poly1Segment f Segment f: Segment [E, F] Segment g Segment g: Segment [E’_1, F] Segment g Segment g: Segment [E’_1, F] Segment g Segment g: Segment [E’_1, F] Segment h Segment h: Segment [F, E’] Segment h Segment h: Segment [F, E’] Segment h Segment h: Segment [F, E’] Point E’ Point E’: E rotated by angle 60°Point E’ Point E’: E rotated by angle 60°Point E’_1 Point E’_1: E rotated by angle - (60°) Point E’_1 Point E’_1: E rotated by angle - (60°) 60? text1 = “60? “60? text1_1 = “60? “V text1_2 = “V”V text1_3 = “V”m text1_4 = “m”

a Rigid Ball Strikes a Rigid Wall

In figure a rigid ball of mass m strikes a rigid wall at 60 (degree) angle.

Choices

Choice (4) Response
a.

mV

b.

mV3

c.

mV2

d.

2mV

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