ஒரு பந்து 30 மீ/வி வேகத்தில் செங்குத்தாக மேல்நோக்கி வீசப்படுகிறது. 4 வினாடிகளுக்குப் பிறகு அதன் இடப்பெயர்ச்சியின் அளவு ______ ஆக இருக்கும் (g = 10 மீ/வி2 என எடுத்துக் கொள்ளுங்கள்.)

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RRB ALP Electrician 22 Jan 2019 Official Paper (Shift 1)
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  1. 50 மீ
  2. 40 மீ
  3. 30 மீ
  4. 15 மீ

Answer (Detailed Solution Below)

Option 2 : 40 மீ
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சரியான விடை 40 மீ.

Key Points ஆரம்ப திசைவேகம்(u) = 30மீ/வி

புவியீர்ப்பு காரணமாக முடுக்கம்(g)= 10 மீ/வி2

நேரம் (t) = 4 வி

சமன்பாட்டைப் பயன்படுத்தி,

S = Ut + 1/2 *a*t2

S = 30*4 + 1/2* (-10)* 4*4 

= 120- 80

= 40 மீ

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