Question

EXTRA NUMERICALS
A box of mass 50 kg is pulled by a force of 80 N. Find the acceleration
of the box. If the mass of the box is doubled and same force pulls it,what is the new acceleration ?​

Answer 1

Explanation:

Given mass of the box (m) = 50kg

Force (F) action on box = 80N 

Acceleration (a) = ? 

Since Force (F) = mass (m) × acceleration (a)

⇒ a = F / m = 80 / 50 = 1.6 m/s2  

If mass is doubled m1 = 2 × 50 = 100 kg 

Acceleration (a) = 80 / 100 = 0.8 m/s2

Thus , acceleration will be halved if the mass is doubled. 

Answer 2

Answer:

$80 = 50 \times x \\ 80 \div 50 = x \\ 1.6 = x = a \\ now \: if \: double \: the \: w \\ then \: \\ 80 = 100x \\ x = \frac{4}{5} = 0.8 \\ this \: is \: the \: a$

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