Question

A student has a mass of 30 kg. Calculate the weight of student on Mars(g= 3.7 N/kg) *

Answer 1

Answer:

The equation

F

net

=

m

a

is used to define net force in terms of mass, length, and time. As explained earlier, the SI unit of force is the newton. Since

F

net

=

m

a

,

1

N

=

1

kg

⋅

m/s

2

.

Although almost the entire world uses the newton for the unit of force, in the United States, the most familiar unit of force is the pound (lb), where 1 N = 0.225 lb. Thus, a 225-lb person weighs 1000 N.