Question

Under what condition a body has acceleration of 4.9 m/s²

Answer 1

Answer:

if u draw free body diagram, u will come to know that the body has acc of (gsinx) down the incline..

if acc is 4.9, then

m(9.8)sinx = m (4.9)

=> sinx = 0.5

=> x = 30 degrees..

hence the inclination of plane should be 30degrees for acc of 4.9 m /sec^2..

hope it helps u

Explanation:

Answer 2

Answer:

solved

Explanation:

g = GM/R² = 9.8

g' = GM/R'² = 4.9

g'/g =0.5=R²/R'² , R' = √2R

distance from earth surface = R' - R = R(√2 - 1 ) ≈ 0.4R

this is one of the conditions,,,,,,