2 years ago

HELP ASAP

Physics

2 answers:

MrRa [10]2 years ago

7 0

BURGER KING, MCDONALDS, PIZZA, CHIPOTLE

Anon25 [30]2 years ago

5 0

Relations
with respect to

Explanation:

Laws of Newton are

An object remains at its position of rest or motion until or unless any external force applied.
Force=Mass×Acceleration.
The initial momentum and final momentum remains same.

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il63 [147K]

Answer:

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Explanation:

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2 years ago

John and Daniel are playing tug-of-war together. John is exerting 10 N of force. Daniel is exerting 12 N of force. What is their

vovangra [49]

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3 years ago

Read 2 more answers

Find the magnitude of the sum of two vectors; A is 5 km , and B is 7 , when the angle btween them is 120

Dimas [21]

Answer: 6.24 km

Explanation:

Given

The magnitude of the first vector(say) $\left | a\right |=5\ km$

the magnitude of the second vector(say) $\left | b\right |=7\ km$

the angle between them is $120^{\circ}$

The resultant vector magnitude is given by

$\left | \vec{R}\right |=\sqrt{a^2+b^2+2ab\cos \theta}$

$\left | \vec{R}\right |=\sqrt{5^2+7^2+2\times 5\times 7\cdot \cos 120^{\circ}}\\\left | \vec{R}\right |=\sqrt{74-35}=\sqrt{39}\\\left | \vec{R}\right |=6.24\ km$