Answer:
A.)
Explanation:
Because you didn't add anything or take anything away.
To solve this problem we will apply the concepts related to energy conservation. With this we will find the speed before the impact. Through the kinematic equations of linear motion we will find the velocity after the impact.
Since the momentum is given as the product between mass and velocity difference, we will proceed with the velocities found to calculate it.
Part A) Conservation of the energy
Part B) Kinematic equation of linear motion,
Here
v= 0 Because at 1.5m reaches highest point, so v=0
Therefore the velocity after the collision with the floor is 3.7m/s
PART C) Total change of impulse is given as,
the answer for this is touch or texture
So the equation ask to calculate on how much can you lift using 1.4m long wheelbarrow that weighs 80n with its CG.5m from the center of the wheel and the weight will be 1740N. I hope you are satisfied with my answer and feel free to ask for more.