All categories

4 years ago

When a cannon is fired, what newton law does is it represent?

Physics

2 answers:

lesantik [10]4 years ago

8 0

Answer:

hiiii!!!!

Explanation:

makkiz [27]4 years ago

3 0

1. Answer: Newton's third law

Explanation:

The forces on both cannon and ball are equal, but they do not have equal acceleration.

Newton's third law states that for every action there must be an equal and opposite reaction, so the forces on the cannon and cannonball are equal in magnitude (but not direction).

The acceleration for both objects are not equal as:

acceleration = force/mass

and the mass of the cannon is larger than the mass of the cannonball, so the acceleration is lesser for the cannon than for the cannonball.

2. Answer: Newton's Third Law

Explanation: Seat belts stop you tumbling around inside the car if there is a collision. Upon sensing a collision the seat belts lock in place. When the car crashes, there is no unbalanced force acting on the person, so they continue forward (Newton's First Law). The person moves against the seat belt, exerting a force on it. The seat belt then exerts a force back on the person (Newton's Third Law). This causes a controlled deceleration of the person.

You might be interested in

A jet is circling an airport control tower at a distance of 20.6 km. An observer in the tower watches the jet cross in front of

lesya [120]

Answer:

197.76 m

Explanation:

r = Radius of the path = 20.6 km = $20.6\times 10^3\ m$

$\theta$ = The angle subtended by moon = $9.6\times 10^{-3}\ rad$

Distance traveled is given by

$s=r\times\theta$

$\Rightarrow s=20.6\times 10^3\times 9.6\times 10^{-3}$

$\Rightarrow s=197.76\ m$

The distance traveled by the jet is 197.76 m

8 0

3 years ago

Can a plane mirror firm a real image ? if yes tell me how ?

alexdok [17]

Answer:

Explanation:

A plane mirror will produce a virtual image of a real object. But it is correct that a plane mirror will also produce a real image of a virtual object.A virtual image An image in a mirror is a virtual object, which can in turn be used to create another image. This can occur when you have more than one optical element in the optical system. Then the object of one component becomes the image of the next optical component.

So the answer is Yes it will!!!!

3 0

3 years ago

Read 2 more answers

A metal sphere, X, has an initial net charge of −6 × 10−6 coulomb and an identical sphere, Y, has an initial net charge of +2 ×

STatiana [176]

When the two spheres touch each other, part of the charge recombine together. The part of charge that recombines is the excess of positive charge on sphere Y, $Q_y = +2 \cdot 10^{-6}C$ , that recombines with an equivalent charge of $-2 \cdot 10^{-6}C$ located on sphere X. As a result, the total charge remained on the two spheres is the excess of negative charge remained on sphere X:
$Q=-4 \cdot 10^{-6}C$
Since the two spheres are identical, they have same capacity, so this charge will now redistribute equally on the two spheres: therefore, at the end, each sphere will have
$\frac{Q}{2}=-2 \cdot 10^{-6} C$

8 0

3 years ago

What is the pressure exerted by a column of fresh water 10m high (p=1000kg/m3 and g=10m/s)

alexira [117]

Height (h) = 10 m
Density (ρ) = 1000 Kg/m^3
Acceleration due to gravity (g) = 10 m/s^2
We know, pressure in a fluid = hρg
Therefore, the pressure exerted by a column of fresh water
= hρg
= (10 × 1000 × 10) Pa
= 100000 Pa

Answer:

100000 Pa

Hope you could understand.

If you have any query, feel free to ask.

8 0

3 years ago

What is the value of x if one side is 8 and the other side is 6

scoundrel [369]

X = 2
hope this helps

4 0

3 years ago