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200 മീറ്റർ നീളമുള്ള ഒരു ട്രെയിൻ മണിക്കൂറിൽ 72 കിലോമീറ്റർ വേഗതയിൽ ഓടുന്നു. 800 മീറ്റർ നീളമുള്ള പാലം കടക്കാൻ എത്ര സമയമെടുക്കും?

A50 seconds

B40 seconds

C60 seconds

D30 seconds

Answer:

A. 50 seconds

Read Explanation:

വേഗത = 72km/hr = 72 x 5/18 = 20 m/s സമയം = ദൂരം / വേഗത = ( 200 + 800)/20 = 1000/20 = 50 സെക്കൻഡ്


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