Question

If the unit of mass is doubled and the units of length and time are halved, How much is 20 N of force in new units.( 1 N = 1Kg ms-2)

0.5 N

5 new units of force

5N      

0.5 new units of force.​

Answer 1

Answer:

• 5New units of force is the required answer

Explanation:

According to the Question

It is given that,

• Unit of mass is doubled and the units of length and time are halved .

we have to calculate the how much is 20 N of force in new units.

As we know that ,

• 1 N = 1Kgms⁻²

Now,

According to given statement

Let's we calculate the new unit of force in given term of force .

1N' = 1 × 2 × 1/2 × 4 (as per given statement)

→ 1N' = 2×2

→ 1N' = 4Kgms⁻²

→ 1N' = 4N

It means ,new unit will be 1/4 time as first we take

→ 1/4N' = 1N

Now, comparing the given Force to new unit of Force we get

→ 1/4N' = 20N

→ N = 1/4 × 20N'

→ N = 5N'

• Hence, the force in new units will be 5N' (or New units)

Answer 2

QUESTION :

• If the unit of mass is doubled and the units of length and time are halved, How much is 20 N of force in new units.( 1 N = 1Kg ms-2)

GIVEN :

• mass is doubled and the units of length and time are halved

• 20 N of force in new units.( 1 N = 1Kg ms-2)

TO FIND :

• How much is 20 N of force in new units = ?

SOLUTION :

• F = N

• F = kg × M / sec = M L / T

• F = M / T

• F 1 = 2 m 1/2 / ( T / 2 )

• F 1 = M / T

• F 1 = 4 M L /T

• F 1 = 4 F

• 20 N / 4 = F

• = 5 N

Force of new units = 5 N