Particle is projected from the surface of the planet krypton with a speed equal to 3.6 times the escape speed from that planet's surface. when the particle is very far away from krypton, its speed is n times the escape speed from that planet's surface. what is n?

N = 3.46

Explanation:

The escape velocity on a planet is given by the expression

V_e = √2GM / R

G , M and R are gravitational constant , mass and radius  of the planet respectively.

Potential energy at the surface

- GMm /R

Total energy at the surface

= - GMm /R  + 1/2 m x (3.6V_e )²

- GMm /R  + 1/2 m x 12.96 x2GM / R

= 11.96 GMm /R

Total energy at infinity

1\ 2 m v² + 0 ( potential energy is zero at infinity )

1\2 mv²

Applying conservation of energy

1/2 m v² = 11.96 GMm /R

v =  √11.96 √2GMm /R

v = √11.96  x escape velocity at planet.

= 3.46 times

N = 3.46

The mass of one washer is  0.0049 kg.

The mass of two washers is  0.0098 kg.

The mass of three washers is  0.0147 kg.

The mass of four washers is  0.0196 kg.