Question

The mass of a person is 50 kg. The weight of that person on the surface of the earth will
be ________.i) 50 N ii) 35 N iii) 380 N iv) 490 N

TNSCERT Class 10 Physics Ch 15 Laws of Motivation and Gravitation

Answer 1

Weight = mass * acceleration due to gravity
           = 50 * 9.18
           = 490 N

so the answer is (iv)

Answer 2

By using the formula:
 w=mg 
we get to know that the weight of the body is 490 N
w=50*9.18
w=490 N