Question

A boy is riding bicycle, if his mass 40kg and the mass of cycle is 20kg, gravitational force acted on bicycle by earth is 30N and is riding bicycle by 1.5m/s. If the air of the bicycle's tyre is removed then how much force will have to exerted by the boy on the bicycle to ride at the same speed and will the gravitational force acted on the bicycle by earth changed , if not give reason if yes what is the gravitational force acted on the bicycle by earth

Answer 1

A particle of mass m 5 1.18  kg is attached between

two identical springs on a frictionless, horizontal

tabletop. Both springs have spring constant k and

are initially unstressed, and the particle is at x 5 0.

(a) The particle is pulled a distance x along a direction perpendicular to the initial configuration of the

springs as shown in Figure P7.66. Show that the force

exerted by the springs on the particle is

F

S 5 22kx a1 2 L

"x 2 1 L2

b

Answer 2

Answer:

$\huge\underline\frak\red{answer★}$

A boy is riding bicycle, if his mass 40kg and the mass of cycle is 20kg, gravitational force acted on bicycle by earth is 30N and is riding bicycle by 1.5m/s. If the air of the bicycle's tyre is removed then how much force will have to exerted by the boy on the bicycle to ride at the same speed and will the gravitational force acted on the bicycle by earth changed , if not give reason if yes what is the gravitational force acted on the bicycle by earth