JEE Mains · Physics · STD 11 - 2. motion in straight line
A small toy starts moving from the position of rest under a constant acceleration. If it travels a distance of \(10 \,m\) in \(t \;s ,\) the distance travelled by the toy in the next \(t s\) will be .........\(m\)
- A \(10\)
- B \(20\)
- C \(30\)
- D \(40\)
Answer & Solution
Correct Answer
(C) \(30\)
Step-by-step Solution
Detailed explanation
\(u =0, \quad\) Say acceleration is a For \(ts\) \(\quad 10=\frac{1}{2} a t^{2}\) For \(2 t s\) \(10+ x =\frac{1}{2} a (2 t )^{2}\) \(\frac{10+ x }{10}=\frac{4}{1}\) \(x =30 \,m\)
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