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4 years ago

PLEASE HELP WILL GIVE BRANLIEST, EXTRA POINTS!

Physics

1 answer:

sashaice [31]4 years ago

6 0

Answer:

C. Try an element in the same group as lithium.

Explanation:

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After a light turns green , Lesly accelerates to 120 km/hr over 100 meters . What is her acceleration in m/s^2

Ivenika [448]

Answer:

5.55 m/s²

Explanation:

Initial velocity = 0
Final velocity = 120 km/hr = 33.3 m/s
Displacement = 100 m

Using Third law of Motion :-

$\longrightarrow$ 2as = v² - u²

$\longrightarrow$ 2*a* 100 = (33.33 m/s)²-0²

$\longrightarrow$ a = 200a = 1110.89

$\longrightarrow$ a = 1110.89/200

$\longrightarrow$ a = 5.55 m/s²

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3 years ago

Frost wedging in a sentence

Brrunno [24]

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4 years ago

What benefits can you gain as you engage yourself with latin dances?

yuradex [85]

Answer:

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Explanation:

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3 years ago

A 5.49 kg ball is attached to the top of a vertical pole with a 2.15 m length of massless string. The ball is struck, causing it

Sergeeva-Olga [200]

Answer: $\theta =45.73^{\circ}$

Explanation:

Given

Length of string =2.15 m

mass of ball =5.49 kg

speed of ball=4.65 m/s

Here

Tension provides centripetal acceleration

$T\cos\theta =mg$ -----1

$T\sin \theta =\frac{mv^2}{r}$ ------2

Divide 2 & 1

$tan\theta =\frac{v^2}{rg}$

$tan\theta =\frac{4.65^2}{2.15\times 9.8}$

$tan\theta =1.026$

$\theta =45.73^{\circ}$

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3 years ago

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klemol [59]

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so rocket achieve thrust and moves when you exert a huge amount of mass at high speed

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3 years ago