Martin rides his motorcycle at 20 m/s. suddenly - id20113011568 от Goldenstate32 11.02.2021 22:21

Question

Physics: Martin rides his motorcycle at 20 m/s. suddenly he sees a row of stones blocking the road 170 m ahead. He applies the brakes and the motorcycle is decelerated at 2 m/s?. Justify will he be able to stop in time? ​

Goldenstate32 · Accepted Answer

As we know that gravitational force on two planets will be given as

let

mass of star = M

mass of two planets are m1 and m2

their distance from star is r1 and r2

$F = \frac{GMm_1}{r_1^2} = \frac{GMm_2}{r_2^2}$

since the gravitational force of star is given on two planets to be same

so here we can say

$\frac{m_1}{r_1^2} = \frac{m_2}{r_2^2}$

now if the ratio of mass and distance is same then we can say that closer planet must have lesser mass to hold good for above equation

so correct answer will be

B) Yes, it is possible if the closer planet has less mass.

Martin rides his motorcycle at 20 m/s. suddenly he sees a row of stones blocking

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