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Grade: 11

                        

A frog can jump with a speed of 2m/s. The minimum number of jump required to cross the road of width 5m

3 years ago

Answers : (1)

neeraj
12 Points
							
for minimum jumps, it must have maximum range in each jump. so angle will be 450.
range= [u2sin(2theta)]/g
putting the values: range = 0.4m   (taking g=10m/sec2)
let number of jumps be n.
0.4 n=5
n=12.5
so it must have 13 jumps
3 years ago
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