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2 years ago

What is the motion of an apple when it falls from a tree ? a)Constant b)accelerating c)decelerating d)zero

Physics

1 answer:

Firdavs [7]2 years ago

5 0

The motion of an apple when it falls from a tree is

b) Accelerating

The motion of apple is when it falls from a tree is the case of free fall.

During free fall , the initial velocity of the apple or any object is zero but it gains some velocity due to gravitatonal acceleration .

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An image of a car with height of 14 cm occurred in the mirror which is located at a T-

fomenos

Hello dear

When a concave mirror is used as rear view mirror then vehicles or any object behind the vehicle in which concave mirror is used

looks bigger than its actual size ,

2. it also looks more closer than actual

3. and it also do not give wider view of coverage .

Thus , it might lead to accidents of vehicles

7 0

2 years ago

As the Sun moves throughout the day, some plants can follow it. This is called _____.

Viefleur [7K]

Answer:As the Sun moves throughout the day, some plants can follow it. This is called solar tracking.

Explanation:

There are flower which tracks the position sun are called heliotropism or solar tracking. flowers.These are the flower which face their bloom side towards the sun to maximize the photosynthesis.The most common example of this is Sun flower.

6 0

2 years ago

What happens in a change in temperature as it is heated

Andre45 [30]

It increases in temperature

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2 years ago

An 1120 kg car traveling at 17.2 m/s is brought to a stop while skidding 40m. Calculate the work done on the car by the friction

Nesterboy [21]

Answer:

Work = 165670.4 J = 165.67 KJ

Explanation:

First, we will find the deceleration of the car, using the 3rd equation of motion:

$2as = v_{f}^2 - v_{i}^2\\$

where,

a = deceleration = ?

s = skid distance = 40 m

vf = final speed = 0 m/s

vi = initial speed = 17.2 m/s

Therefore,

$2a(40\ m) = (0\ m/s)^2 - (17.2\ m/s)^2\\a = - 3.698\ m/s^2$

the negative sign indicates deceleration here.

Now, we will calculate the braking force applied by the brakes on the car:

$F = ma\\F = (1120\ kg)(-3.698\ m/s^2)\\F = - 4141.76\ N$

the negative sign indicates braking force.

Now, we will calculate the work done using the magnitude of this force:

$Work = |F|s\\Work = (4141.76\ N)(40\ m)\\$

Work = 165670.4 J = 165.67 KJ

8 0

2 years ago

A car has a speed of 2 m/s and a mass of 1500kg. What is the car’s kinetic energy

kumpel [21]

Answer:

3,000 m/s

Explanation:

3,000 m/s

6 0

2 years ago

What is the motion of an apple when it falls from a tree ? a)Constant b)accelerating c)decelerating d)zero​

What is the motion of an apple when it falls from a tree ? a)Constant b)accelerating c)decelerating d)zero