Question

(b) Force has the SI units kg · m/s2. Given the units of force, write a simple equation relating a constant force F exerted on an object, an interval of time t during which the force is applied, and the resulting momentum of the object, p. (Submit a file with a maximum size of 1 MB.)

Answer 1

Answer:

The unit of force is Newton.

Explanation:

Given that,

S.I unit of force = kg -m/s²

Time = second

We need to calculate the unit of force

A constant force exerted on the object, an interval of time during

The force is applied and the resulting momentum of the object P.

Using formula of momentum

$P = mv$....(I)

From equation of motion,

v = a t

From newton's second law

$a =\dfrac{F}{m}$

Put the value v and a in the equation (I)

$P=m\times a\times t$

$P=m\times\dfrac{F}{m}\times t$

$P=F\times t$

Put the unit of the force and time

$P = kg-m/s^2\times s$

Here, $kg-m/s^2=N$

$P=N-s$

Hence, The unit of force is Newton.