The velocity of a car is 65 m/s and it’s mass is 2515 kg. What is it’s KE?
2 answers:
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Answer:
The correct answer is a
Explanation:
At projectile launch speeds are
X axis vₓ = v₀ = cte
Y axis = v_{oy} –gt
The moment is defined as
p = mv
For the x axis
pₓ = mvₓ = m v₀ₓ
As the speed is constant the moment is constant
For the y axis
p_{y} = m v_{y} = m (v_{oy} –gt) = m v_{oy} - m (gt)
Speed changes over time, so the moment also changes over time
Let's examine the answer
i True
ii False. The moment changes with time
The correct answer is a
The momentum of ball is given by:
Since both have the same momentum, we have:
Number 3
If you notice any mistake in my english, please let me know, because i am not native.
Since both have the same momentum, we have:
Number 3
If you notice any mistake in my english, please let me know, because i am not native.