Question

Find the gravitational force between a man of mass 50kg and a car of mass 1500kg separated by 10m.

Answer 1

Answer:

$5 \: \times \: {10}^{ - 8} \: newton \: is \: the \: gravitational \: force \: between \: a \: man \: and \: a \: car.$

Explanation:

Given

m1 = 50 kg

m2 = 1500 kg

r = 10 m

To find

f = ?

By the formula of gravitational force

f = G m1m2/r^2

$f \: \: = \frac{6.67 \: \times \: {10}^{ - 11 \: } \times \: 50 \: \times 1500}{10 \: \times \: 10} \: newton \\ f \: = \frac{6.67 \: \times \: {10}^{ - 11} \: \times \: 75000}{100} \: newton \\ f \: = \: 6.67 \: \times \: {10}^{ - 11} \: \times 750 \: newton \\ \: f = \: 5002.5 \: \times \: {10}^{ - 11} \: newton \\ f \: = \: 5 \: \times {10}^{8} \: newton \: (approx)$

Here,

G is gravitational constant

Value of G is 6.67 × 10^-11 Nm^2/kg^2.

m1 is the mass of first body i.e., man.

m2 is the mass of second body i.e., car.

r is the distance between two bodies.

f is gravitational force between two bodies.

N is newton

m is meter

kg is kilogram.

GRAVITATIONAL FORCE

The force of attraction between all masses in the universe, especially the attraction of the earth's mass for bodies near it's sirface.