Answer: 
Explanation:

where;
= final velocity = 0
= initial velocity = 60 km/h = 16.67 m/s
= acceleration
= distance
First all of, because acceleration is given in m/s and not km/h, you need to convert 60km/h to m/s. Our conversion factors here are 1km = 1000m and 1h = 3600s

Solve for a;

Begin by subtracting 

Divide by 2d

Now plug in your values:



If you're wondering why I calculated acceleration first is because in order to find force, we need 2 things: mass and acceleration.

m = mass = 900kg
a = acceleration = -2.78m/s

It's negative because the force has to be applied in the opposite direction that the car is moving.
Answer:20.03 m/s
Explanation:
Given

velocity of Prototype 
Taking Froude number same for both flow as it is a dimensionless number for different flow regimes in open Flow




Answer: C
Explanation:
when more volts are in a battery the more current you receive.
In this problem, we have an <u>initial velocity</u>
jump upwards (opposite direction to gravity) with the <u>acceleration</u> due to gravity
, finally the player will reach to <u>final velocity</u> in the air 
Using the equation of motion, the third equation states that:

where h is the height , the distance which the player reach in air
Thus

