Impulse & Momentum

Section: Physics

Question : 7 of 16

Marks: +1, -0

A particle of mass M=0.2kg is initially at rest in the xy-plane at a point (x=−l,y=−h), where l=10m and h=1m. The particle is accelerated at time t=0 with a constant acceleration a=10m∕s2 along the positive x-direction. Its angular momentum and torque with respect to the origin, in SI units, are represented by L and

→

, respectively.

∧

and

∧

are unit vectors along the positive x,y and z-directions, respectively. If

∧

then which of the following statement(s) is(are) correct ?

[JEE Adv 2021 P1]

The particle arrives at the point (x=l,y=−h) at time t=2s.
→
τ
=2
∧
k
when the particle passes through the point (x=l,y=−h)
∧
L
=4
∧
k
when the particle passes through the point (x=l,y=−h)
→
τ
=
∧
k
when the particle passes through the point (x=0,y=−h)

Validate

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