Answer:
a. I = -3mv₀/2 b. F = -3mv₀/2t
Explanation:
a. Use the impulse-momentum to write an equation for the system which is the cart only.
We know Impulse , I = Δp where Δp = change in momentum.
Now, Δp = m(v - u) where m = mass of cart, u = initial velocity of cart = v₀ and v = rebound velocity of cart = -v₀/2 (negative since it moves in the opposite direction to u)
So, I = Δp = m(v - u)
Substituting the values of the variables into the equation, we have
I = m(-v₀/2 - v₀) = -3mv₀/2
So, I = -3mv₀/2
b. If the time during which the bumper exerts a force on the cart is t, write an expression for the force F exerted on the cart in terms of the given variables.
We know impulse I = Ft where F = force exerted on the cart and t = time force acts
Also, I = -3mv₀/2
So, Ft = -3mv₀/2
F = -3mv₀/2t
The basketball player must be going at 3.57 m/s<em> </em>when she leaves the ground.
<u>Given the following data:</u>
We know that acceleration due to gravity (a) for an object or body is equal to 9.8 meter per seconds square.
To find how fast (velocity) the basketball player must be going when she leaves the ground, we would use the third equation of motion;
<u>Where:</u>
- S is the distance covered.
Substituting the given parameters into the formula, we have;
<em>Final velocity, V </em><em>= </em><em>3.57 m/s</em>
Therefore, the basketball player must be going at 3.57 m/s<em> </em>when she leaves the ground.
Read more: brainly.com/question/8898885
Answer:
assuming that there is an equal amount of each base, you can make 65,536 bases
Explanation:
Adenine(A) Guanine(G) Thymine(T) and Cytosine(C) are the 4 nitrogen bases.