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2 years ago

if two objects masses 8kg and 24 kg are dropped from top of a building. Which one reaches the ground first

Physics

2 answers:

Nadusha1986 [10]2 years ago

6 0

They will reach the grouns at the same time if we neglect.
Y=1/2 gt²
There is know mass needed in the equation

kherson [118]2 years ago

5 0

<h3>the object weighing 24 kg ( kilograms ) will reach the ground first</h3>

if two objects are the same size but one is heavier, the heavier one has greater density than the lighter object
so when both objects are dropped from the same height and at the same time, the heavier object should hit the ground before the lighter one

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Beth, a construction worker, attempts to pull a stake out of the ground by pulling on a rope that is attached to the stake. The

AnnyKZ [126]

Answer:

Fy=107.2 N

Explanation:

Conceptual analysis

For a right triangle :

sinβ = y/h formula (1)

cosβ = x/h formula (2)

x: side adjacent to the β angle

y: opposite side of the β angle

h: hypotenuse

Known data

h = T = 153.8 N : rope tension

β= 44.2°with the horizontal (x)

Problem development

We apply the formula (1) to calculate Ty : vertical component of the rope force.

sin44.2° = Ty/153.8 N

Ty = (153.8 N ) *(sen44.2°)= 107.2 N directed down

for equilibrium system

Fy= Ty=107.2 N

Fy=107.2 N upward component of the force acting on the stake

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3 years ago

Why can't ppl's parent's just accept you for who you are??

gayaneshka [121]

Answer:

is this a physics questions???

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4 0

2 years ago

Read 2 more answers

Kenny klutz drops his physics book off his aunt's high-rise balcony.it hits the ground below 1.5 s later?

tatuchka [14]

Gravity causes a falling object to fall 9.8 m/s faster every second it falls.

Kenny's book started out with no speed when it was dropped.
1.5 sec later, it was falling at (9.8 x 1.5) = 14.7 m/s .

During the fall, its average speed was 1/2(0 + 14.7) = 7.35 m/s .

Distance it covered = (average speed) x (time) =

(7.35 m/s) x (1.5 sec) = 11.025 m

8 0

3 years ago

How is high temperature achieved by concave mirror?

tensa zangetsu [6.8K]

A concave mirror is used in the design of solar furnaces because they converge the parallel sunrays at a point. This helps to increase the temperature of the furnace.

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3 years ago

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a 2500 kg car going 35 m/a hits a 4000kg truck that is sitting still. What is the velocity of the truck if the car transfers all

lianna [129]

Answer:

Velocity of truck is 21.875 m/s.

Explanation:

Given:

Mass of the car (m) = 2500 kg

Initial speed of the car (u) = 35 m/s

Mass of the truck (M) = 4000 kg

Initial speed of the truck (U) = 0 m/s (Rest)

As per question, the total momentum of the car gets transferred to the truck.

Therefore, the final momentum of the car is 0.

Momentum is given as the product of mass and velocity.

So, if momentum becomes zero means the velocity becomes 0.

Therefore, final velocity of the car (v) = 0 m/s

Let the final velocity of truck be 'V' m/s.

Now, during collision, the total momentum remains conserved.

Initial momentum = Final momentum.

Initial momentum of car + Initial momentum of truck = Final momentum of car + Final momentum of truck.

⇒ $mu+MU=mv+MV\\\\2500\times 35+4000\times 0=2500\times 0+4000\times V\\\\87500+0=0+4000V\\\\4000V=87500\\\\V=\frac{87500}{4000}\\\\V=21.875\ m/s$

Therefore, the velocity of the truck is 21.875 m/s.

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3 years ago