A stone of mass 200 gram has a kinetic energy of 100 joules Calculate the speed of the moving stone .
Answers
Answered by
2
Answer:
1 m/s
Explanation:
K.E = 1/2 MV^2
100V^2 = 100 joules
V^2= 1
V= 1 m/s...
Answered by
1
Answer:
31.6 m/s or 10 × root10 m/s
Explanation:
m = 200 g = 0.2 kg
K.E. = 1/2 × m × v^2 = 100
1/2 × 0.2 × v^2 = 100
v^2 × 0.1 = 100
v^2 = 1000
v = root1000 = 10 × root10 = 31.6 m/s
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