Question

please dont spam i dont know dont write​

Answer 1

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Given,

• Mass (m) = 10 kg
• Acceleration (a) = 2 m/s²
• Initial velocity (u) = 0

For no. a,

• Time = 1 s
• v = ?

We know that,

$\tt ⇰ \: a = \frac{ {v}^{2} - {u}^{2} }{t} \\ \\ \tt⇰ \: 2 = \frac{ {v}^{2} - ( {0)}^{2} }{1} \\ \\ \tt⇰ \: 2 = \frac{ {v}^{2} - 0}{1} \\ \\ \tt ⇰ \: 2 = {v}^{2} \\ \tt⇰ \: v = \sqrt{2}$

We also know that,

Momentum = Mass × Velocity

⇰ 10 × √2

⇰ 10√2

For no. b,

• Time = 1.5 s
• v = ?

$\tt ⇰ \: a = \frac{ {v}^{2} - {u}^{2} }{t} \\ \\ \tt⇰ \:2= \frac{ {v}^{2} - ( {0)}^{2} }{1.5} \\ \\ \tt⇰ \: 2 \times 1.5 = { { v }^{2} - 0} \\ \tt⇰ \: 3 = {v}^{2} \\ \tt ⇰ \: {v} = \sqrt{3}$

So,

Momentum = Mass × Velocity

⇰ 10 × √3

⇰ 10√3

For no. b,

• Time = 2 s
• v = ?

$\tt ⇰ \: a = \frac{ {v}^{2} - {u}^{2} }{t} \\ \\ \tt⇰ \:2= \frac{ {v}^{2} - ( {0)}^{2} }{3} \\ \\ \tt⇰ \: 2 \times 3 = { { v }^{2} - 0} \\ \tt⇰ \: 6 = {v}^{2} \\ \tt ⇰ \: {v} = \sqrt{6}$

So,

Momentum = Mass × Velocity

⇰ 10 × √6

⇰ 10√6