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At the moment t = 0, the foce F = kt is ...

At the moment t = 0, the foce F = kt is applied to a small body of mass 'm' resting on a smooth horizontal plane, (K is a positive constant ) . The direction of the force forms an angle `theta` with the horizontal always as shown which of the option (s) is /are correct ?

A

At `t=(mgcos theta)/(k)` body leaves contant with the surface

B

At `t=(mg)/(k(sin theta))` body leaves contant with the surface

C

In the interval `0 lt t lt (mg)/(k(sin theta))` , normal reaction decreases lineearly with respect to time

D

In the interval `0 lt t le (mg cos theta)/(k)` , normal reaction decreases lineearly with respect to time

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The correct Answer is:
B, C
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AAKASH SERIES-NEWTONS LAWS OF MOTION -PRACTICE SHEET (EXERCISE - I) (LEVEL - II) (More than One correct answer Type Questions)
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