Which of the following is an example of Newton’s first law of motion?

Physics

2 answers:

Zina [86]3 years ago

8 0

Answer:

I think first one

Explanation:

Because his first law of motion was every object will remain at rest or uniform motion in a straight line

marysya [2.9K]3 years ago

3 0

Answer:

Sam's bike hits a curb and he flies over the handlebars, onto the grass.

Explanation:

As we know that: Newtons first law of motion states that a body continues to remain in the inertia of rest or motion, unless it is forced to change by applying an unbalanced force. Sam's bike is in uniform motion when suddenly the curb(external force) hits it and makes Sam to fall.

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Answer:

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3 years ago

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noname [10]

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A World War II bomber flies horizontally over level terrain, with a speed of 287 m/s relative to the ground and at an altitude o

Scorpion4ik [409]

Answer: 7.38 km

Explanation: The attachment shows the illustration diagram for the question.

The range of the bomb's motion as obtained from the equations of motion,

H = u(y) t + 0.5g(t^2)

U(y) = initial vertical component of velocity = 0 m/s

That means t = √(2H/g)

The horizontal distance covered, R,

R = u(x) t = u(x) √(2H/g)

Where u(x) = the initial horizontal component of the bomb's velocity = 287 m/s, H = vertical height at which the bomb was thrown = 3.24 km = 3240 m, g = acceleration due to gravity = 9.8 m/s2

R = 287 √(2×3240/9.8) = 7380 m = 7.38 km