A pile driver falls freely from a height of 4.50 m above a pile. What is its velocity as it hits the pile? Remember to include your data, equation, and work when solving this problem.

9.4 m/s

Step-by-step explanation:

We are given that

Height of pile driver above a pile =h=4.5 m

Acceleration due to gravity=

According to law of conservation of energy

K.E=Potential energy

Substitute the values

m/s

Hence, the velocity of pile driver as it hits the pile=9.4 m/s

e) none of the above because the measure of angle cba is 101°

spinning a 1, 2, or 3. option d.

step-by-step explanation: when spinning a number graph up to 4, and aiming for any number less than 3, that automatically eliminates the number 4. now you have two numbers to spin on that are less than 3, but the number 3 is included in this question because it's no greater of an number than itself. i hope this you : )