Answer:
1.23 m/s
Explanation:
p=mv
57.2 = 46.5v
v= 57.2/46.5
v= 1.23
If you want to verify your answer, just insert the value of v in the equation.
To solve this problem we will apply the concepts related to the conservation of momentum. This can be defined as the product between the mass and the velocity of each object, and by conservation it will be understood that the amount of the initial momentum is equal to the amount of the final momentum. By the law of conservation of momentum,
Here,
= Mass of Basketball
= Mass of Tennis ball
= Initial velocity of Basketball
= Initial Velocity of Tennis ball
= Final velocity of Basketball
= Final velocity of the tennis ball
Replacing,
Solving for the final velocity of the tennis ball
Therefore the velocity of the tennis ball after collision is 11 m/s
It would be gravity i do beileve
The answer:
we can use newton's second law for finding the value of acceleration
that is F=MxA
M the mass
A is the acceleration
F= P-Fk, Fk= -Mgcosθμ and P=Mgsinθ
μ is the coefficient of friction
The value of μ can be found with the above condition
(<span>pulled up a 28 ° rough ramp at constant speed)
</span>this implies the acceleration is equal to zero
100N - mgsin(28°) -mgcos(28°)μ<span> = 0 , from where </span>
μ= [100N - mgsin(28°)] / mgcos(28°)
μ=0.2
and then,
F=MxA= Mgsinθ -Mgcosθμ finally A=gsin28° -gcos28° x0.2 =2.6m/s²
Explanation:
The density of silver is 10.5g/cm3
=2500.0g/10.5g/cm3
=238.09cm3
238.1cm3 to nearest tenth.
I hope my answer helps. Please mark as brainliest.
