The characteristics of the projectile launch allows to find the result for the velocity on the x axis is:
- In the horizontal axis there is no acceleration and therefore the speed must be kept constant.
- The horizontal speed is vₓ = 8.0 m / s
In projectile launching we have an application of kinematics to motion in two dimensions near the surface of the Earth.
In this case, on the vertical axis we have an acceleration directed towards the center of the planet and called the gravity acceleration.
In the horizontal axis or x axis there is not acceleration, except in special cases that we tone is how much the resistance of the air.
Consequently in the horizontal axis there is no acceleration and therefore the speed must be kept constant, the result for the horizontal speed is:
vₓ = 8.0 m / s
Learn more here: brainly.com/question/17228361
Answer:
A) t = 0.55 s
B) x = 24.8 m
Explanation:
A) We can find the time at which the ball will be in the air using the following equation:
Where:
is the final height= 0
is the initial height= 1.5 m
is the component of the initial speed in the vertical direction = 0 m/s
t: is the time =?
g: is the gravity = 9.81 m/s²
By solving the above equation for t we have:
Hence, the ball will stay 0.55 seconds in the air.
B) We can find the distance traveled by the ball as follows:
Where:
a: is the acceleration in the horizontal direction = 0
is the final position =?
is the initial position = 0
is the component of the initial speed in the horizontal direction = 45 m/s
Therefore, the ball will travel 24.8 meters.
I hope it helps you!
A scientist can assess whether a pure niobium sample is responsible for contaminating the lab with radioactivity by testing the sample. By testing the niobium sample, a scientist can determine whether it has any other element.
Ah hah ! Thank you for that data at the end ... about the 2.5kg box.
I thought we were going to have to calculate it from Square-1.
Without checking, I'll assume that a 2.5kg box at that location really
does weigh 6.1 Newtons.
Weight (gravitational force) is directly proportional to the mass of
the object ... if you eat twice as much, you'll weigh twice as much.
So the weight of the 1kg box is
(1 / 2.5) x (6.1 N) = 2.44 Newtons .
Answer:
given.. mass of copper 2kg
- initial temperature is copper(I)=100°c
- volume of water(5l)=5kg of water
- initial water temperature =20°c
- what's the final temperature(f)??
from the concept
heat lost from an object=heat gained by the other object
Heat=McΔT
Mč x Cč x ΔTč = Mw x Cw x ΔTw
2kg x 385J/kg°C x (100°c - {F}) = 5kg x 4200J/kg°C x ({f} - 20°C)
77000 - 770F = 21000F - 420,000
21770F =497000
....divide both sides....
F=22.83°C
therefore the final temperature of the water was 22.83°C
