3 years ago

Is Newton's third law of motion relevant to dropping an egg

1 answer:

8 0

Newton's third law states, that for every action, there is an equal and opposite reaction. In this case, the third law of motion is relevant to the egg being dropped, as the forces for gravity are pulling downwards, the air drag is pushing up on the egg. As well as the force of the ground when the egg lands.

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SP1b.

nata0808 [166]

Answer:

2 m/s^2, west

Explanation:

Vf=final velcoity

Vi=initial velocity

t=timw

$a = \frac{vf - vi}{t}$

$\frac{15 - 25}{5}$

= - 2 m/s^2

The - changes direction and makes it opposite

2 m/s, west

3 0

2 years ago

If sunlight begins to warm a frozen lake, the atoms in the lakes frozen water will begin to move faster. True of False?

Vinvika [58]

True, the water would eventually move from solid back to liquid form because of the heat.<span />

4 0

3 years ago

How do you calculate change in position? A. initial position times two B. final position plus initial position C. final position

e-lub [12.9K]

The answer is C. Final position minus initial position.

5 0

3 years ago

Please help my test is going on. Please answer both (i) and (ii).

Eduardwww [97]

Answer:

i. 7.5 m

ii. 15000 N

Explanation:

Area under vt graph shows the displacement

so area of triangle ABE= 1/2×15×2

=7.5 m

ii) F=ma

here, m=1000kg

and a=v-u/t

=15-0/1

a=15

F=1000×15=15000N

8 0

3 years ago

During a softball game, a batter hits a ball upward from an initial height of 3 feet. the height, in feet, of the softball is gi

Lynna [10]

Answer: 3.55 s and 0.83 s

Explanation:

The height (in feet) of the softball is given by:

s(t)=-16t²+70t+3

we need to find the time when the ball is 50 feet above the ground:

⇒50 = -16t²+70t+3

we need to solve the quadratic equation

⇒16t²-70t+47 = 0

$t=\frac{70\pm \sqrt{70^2-4(16)(47)}}{2(16)}$

This gives two values of time: 3.55 s and 0.83 s

6 0

2 years ago

Read 2 more answers