What is the mass of a cannonball if a force of 2,500 N gives the cannonball an acceleration of 200 m/s2? Question 5 options: 15.
1 answer:
The mass of the given cannonball is 12.5 kg. Option B is correct.
<h3>What is Acceleration?</h3>
It is defined as the change in the direction and speed of the object. It is a vector quantity.
From, Newton's second law of motion
Where,
- force = 2,500 N
- mass
- acceleration = 200 m/s²
Put the values in the formula,
Therefore, the mass of the given cannonball is 12.5 kg.
Learn more about Acceleration:
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Answer:
Explanation:
<u>Horizontal Launch</u>
When an object is thrown horizontally with a speed v from a height h, it describes a curved path ruled by gravity until it eventually hits the ground.
The horizontal component of the velocity is always constant because no acceleration acts in that direction, thus:
vx=v
The vertical component of the velocity changes in time because gravity makes the object fall at increasing speed given by:
The horizontal component of the velocity is always the same:
The vertical component at t=5.5 s is:
Answer:
At 81. 52 Deg C its resistance will be 0.31 Ω.
Explanation:
The resistance of wire =
Where =Resistance of wire at Temperature T
= Resistivity at temperature T
Where
l=Length of the wire
& A = Area of cross section of wire
For long and thin wire the resistance & resistivity relation will be as follows
T = 81.52 Deg C