Question
Download Solution PDFమీరు కారు వేగాన్ని రెట్టింపు చేసినప్పుడు, దానిని ఆపడానికి _______ రెట్లు ఎక్కువ దూరం పడుతుంది?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFకారు ప్రారంభ వేగం (u) మరియు చివరి వేగం (v) అని అనుకుందాం. కాబట్టి ఇక్కడ v = 0 వాహనం ఆగుతుంది.
చలన సమీకరణం యొక్క 3వ నియమం ప్రకారం,
v2 - u2 = 2aS1
0 - u2 = 2aS1
S1 = \(\rm \frac{-u^2}{2a}\) ...... (i)
ప్రారంభ వేగం రెట్టింపు అయినప్పుడు u = 2u
v2 - u2 = 2aS2
2aS2 = -(2u)2
S2 = \(\rm \frac{-4u^2}{2a}\) .......(ii)
సమీకరణం (i) మరియు సమీకరణం (ii) నుండి
\(\rm \frac{S_1}{S_2}=\left(\frac{-u^2/2a}{-4u^2/2a}\right)\)
\(\rm \frac{S_1}{S_2}=\frac{1}{4}\)
S2 = 4S1
కాబట్టి, కారు ఆపడానికి మూడు రెట్లు ఎక్కువ దూరం పడుతుంది.
Last updated on Jun 11, 2025
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