Latest IIT-JEE Aptitude Question SOLUTION: A small block is connected to one end of a massless spring of un-stretched length 4.9 m. The other end of the spring (see the figure) is fixed. The system lies on a horizontal fric

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(#M40027932) IIT-JEE question 2012 question Keep an EYE

A small block is connected to one end of a massless spring of un-stretched length 4.9 m. The other end of the
spring (see the figure) is fixed. The system lies on a horizontal frictionless surface. The block is stretched by 0.2
m and released from rest at t = 0. It then executes simple harmonicmotion with angular frequency rad/ s
pie/3.
Simultaneously at t = 0, a small pebble is projected with speed v from point P at an angle of 45º as shown in the
figure. Point P is at a horizontal distance of 10 cm from O. If the pebble hits the block at t = 1s, the value of v is

Asked In IIT-JEE MAN (11 years ago)

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