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3 years ago

What is the momentum of 70 kg runner traveling at 10 m/s?

Physics

2 answers:

Ivenika [448]3 years ago

8 0

700 kg m/s
Because momentum is mass times velocity

valentina_108 [34]3 years ago

5 0

Answer : The momentum of 70 kg runner is, 700 kg.m/s

Explanation :

Momentum : It is defined as the motion of a moving body. Or it is defined as the product of mass of velocity of an object.

Formula of momentum is:

$p=mv$

where,

p = momentum = ?

m = mass = 70 kg

v = velocity = 10 m/s

Now put all the given values in the above formula, we get:

$p=(70kg)\times (10m/s)$

$p=700kg.m/s$

Therefore, the momentum of 70 kg runner is, 700 kg.m/s

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garri49 [273]

Explanation:

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vmax = 1.12 m/s

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3 years ago

The radius of Earth is about 6450 km. A 7070 N spacecraft travels away from Earth. What is the weight of the spacecraft at a hei

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(b) 182.45 N

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Radius of earth, R = 6450 km

Weight of person, W = 7070 N

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The value of acceleration due to gravity on height is given by

$g' = g\left ( \frac{R}{R+h} \right )^2$

$g' = g\left ( \frac{6450}{6450+6450} \right )^2$

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The weight of the person at such height is

W' = m x g' = 721.4 x 2.45

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The value of acceleration due to gravity on height is given by

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$g' = g\left ( \frac{6450}{6450+33700} \right )^2$

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