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sergey [27]
3 years ago
12

Given a force of 100 N and an acceleration of 5 m/s2, what is the mass

Physics
2 answers:
UNO [17]3 years ago
6 0

Answer:

20 kg

Explanation:

Mass equals force divided by acceleration, so divide 100 N by 5 m/s2 and you get your mass: 20 kg

VMariaS [17]3 years ago
4 0

Answer: m= 20 kg

Explanation: Use the formula

F = m a

to solve this.

100 N = m (5 m/s²)

100 N / (5 m/s²) = m

20 kg = m

(N is also kgm/s², so when you divide by m/s², you are left with kg.)

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Answer:

5.865 μs

Explanation:

t₀ = Time taken to decay a muon = 2.20 μs

c = Speed of Light in vacuum = 3×10⁸ m/s

v = Velocity of muon = 0.927 c

t = Lifetime observed

Time dilation

t=\frac{t_0}{\sqrt{1-\frac{v^2}{c^2}}}\\\Rightarrow t=\frac{2.2\times 10^{-6}}{\sqrt{1-\frac{(0.927c)^2}{c^2}}}\\\Rightarrow t=\frac{2.2\times 10^{-6}}{\sqrt{1-0.927^2}}\\\Rightarrow t=\frac{2.2\times 10^{-6}}{\sqrt{0.140671}}\\\Rightarrow t=\frac{2.2\times 10^{-6}}{0.3750}\\\Rightarrow t=5.865\times 10^{-6}\ seconds

∴Lifetime observed for muons approaching at 0.927 the speed of light is 5.865 μs

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