20 Physics -- Kinematics

2. A boy stretches a stone against the rubber tape of a catapult or gulel' (a device used to detach mangoes from the tree by boys in Indian villages) through a distance of 24 cm before leaving it. The tape returns to its normal position accelerating the stone over the stretched...

2. A boy stretches a stone against the rubber tape of a
catapult or gulel' (a device used to detach mangoes from
the tree by boys in Indian villages) through a distance
of 24 cm before leaving it. The tape returns to its normal
position accelerating the stone over the stretched length.
The stone leaves the gulel with a speed of 2.2 s. Assuming
that the acceleration is constant while the stone was being
pushed by the tape, find its magnitude.

1 Answers

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Initial velocity(u)= 0m/s

Final velocity(v)= 2.2m/s

Displacement(d)= 24cm=0.24m

Now, v²=u²+2as

(2.2)² = 0²+2×a×0.24

a = 4.84÷0.48

a = 10.1Ansm/s²_Ans

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Solution

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