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Subjects
Science CBSE
Class 9
Work and energy
Textbook based HOTS II
45.
Multiple choice question XLV
Exercise condition:
2
m.
A tv tower is \(40\ m\) high. A mass of \(5\ kg\) is dropped from its top. Calculate the potential energy at the top and kinetic energy just before it hits the ground (\(g\ =\ 10\ ms^{-2}\))
\(1000\ J\ and\ 1000\ J\)
\(2000\ J\ and\ 2000\ J\)
\(3000\ J\ and\ 1000\ J\)
\(4000\ J\ and\ 2000\ J\)
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