A car travels 30 m in 2 s with uniform acceleration starting from rest. Acceleration is MCQ with Answer and Explanation
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Question #1
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Newton's second law gives the measure of
Question #2
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Significant figures in 0.004050:
Correct Answer: Option A
Explanation:
Rules: leading zeros not significant; trailing zero after decimal is significant. Digits 4,0,5,0 are significant ⇒ 4 sig figs. Memory tip: 'Start at first non-zero; include trailing zeros after decimal'. Measurement precision concept frequently tested in competitive exams.
Rules: leading zeros not significant; trailing zero after decimal is significant. Digits 4,0,5,0 are significant ⇒ 4 sig figs. Memory tip: 'Start at first non-zero; include trailing zeros after decimal'. Measurement precision concept frequently tested in competitive exams.
Question #3
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0°C on Fahrenheit scale is
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