An egg physics problem?

Question

U are on a tall bridge, 46.0 m above the ground. A car, whose hood is 1.00 m high, is moving down the street toward the bridge. At
the moment you see the car, the vehicle has velocity V1c= 20.0 m/s and constant acceleration Ac= 1.6 m/s^2. At the moment, you throw the egg upward with the speed of |V1e| = 5.00 m/s. The egg lands on the front edge of the hood. Assume the egg is in one-dimensional vertical free fall.

b.) what was the distance D of the car from the bridge at the moment u threw the egg?
c.) what will be the velocity of the car when the egg lands on the hood?
d) what is the average velocity.
e.) what is the avg. velocty of the car?

i solved part a. and i have an idea how to do part b but i need help on the rest. Any hints is appreciated, thanks.

Answer 1

I'm assuming part A asked you to find the time (t) it took for the egg to hit the front edge of the hood; if not, then you'll have to solve for this.

Now, remember your kinematic equations. In this case we'll use:
∆x = ½*a*t² + v*t
Where ∆x is the distance traveled by the car in time t (from the moment you released the egg), a is the acceleration of the car, v is the initial velocity of the car, and t is the same time in the assumed part A. Naturally, ∆x is the distance the car started away from the base of the bridge from the moment you threw the egg.

For part C, there's really two ways to do this, using one of two kinematic equations:
v_final = v_initial + a*t
(v_final)² = (v_initial)² + 2*a*∆x
Here the former equation is preferable, as the latter equation was based on ∆x which was based on t--more intermediate calculations which leave more room for rounding errors.

Once you find the final velocity, you should be able to find the average velocity by finding the mean. (You could also integrate using Calculus II techniques, but since acceleration is constant this would be superfluous.)

Are parts D and E are asking for the same thing or not? If part D is asking for the average velocity of the falling egg, then you would use one of the equations listed for part C, except of course use the respective y-values, your acceleration as g=9.80 [m/s/s], etc.

Answer 2

how approximately packing it in 60 grams of cotton. then tape some paper around the cotton to maintain it contained. do exactly no longer squish the cotton too no longer ordinary with the paper and tape. the nice and comfortable button is which you rather desire the egg to decelerate slowly. in case you compress the cotton too lots, the egg won't have as a ordinary ordinary procedures to return and forth during its deceleration.

Answer 3

Are you the one who threw egg at my car the other day ?