Pls help me solve this

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a) The uniform velocity travelled by the car is 10 meters per second.

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c) The distance travelled by the car with uniform velocity is 100 meters.

Explanation:

a) Calculate the uniform velocity travelled by the car:

The uniform velocity is the final velocity (), in meters per second, of the the uniform accelerated stage:

(1)

Where:

- Initial velocity, in meters per second.

- Acceleration, in meters per square second.

- Time, in seconds.

If we know that , and , then the uniform velocity is:

The uniform velocity travelled by the car is 10 meters per second.

(Point b has been erased by the user)

c) The distance travelled by the car (), in meters, with uniform velocity is calculated by the following kinematic expression:

(2)

If we know that and , then the distance travelled is:

The distance travelled by the car with uniform velocity is 100 meters.

here we know that ball will drop down by total distance 3.2 m

so here we know that

now using kinematics

now in the same time it will cover horizontal distance of 0.75 m

so speed of the ball will be

can be answered using momentum.

momentum = p

p1= mass1 * velocity1

p1 = p2

therefore

p1 = 6kg * 4m/s

p1 = 24kgm/s

p2=m2 * v2

24 kgm/s = 7kg * v2

v2 = 24 kgm/s / 7kg

v2= 3.42 m/s