Question

On a planet a freely falling body travels 10 m, and 90 min 1 second and 3 seconds respectively Acceleration due to gravity on that planet is a)20 ms^-2
b) 10 ms^-2
c) 9.8 ms ^2
d) 4.9 ms^-2
I need solution with explanation plz answer me fast if do I will mark you as brainliest answer.​

Answer 1

Answer:

hi. your question is not understandable,,but dont worry i wud help you out. mark me brainliest

Explanation:

you meant,

a body, falls from a height of 10m in 1 second

and 90m in 3 seconds

so we need to find acceleration, which can b found out using,

h=ut+1/2*g*t^2               (g=acceleration)

10=0*1+1/2*g*1^2            (u=0, since body is DROPPED)

10=1/2g

g=20m/s^2

acceleration =20m/s^2

to verify,

we use the formula for 90m and 3 seconds

90=0+1/2*g*3^2

90=9/2g

g=20m/s^2

hence correct option is option (a)

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Answer 2

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