Answer:
Maximum shear stress in region AB=1.04 MPa
Maximum shear stress in region BC=3.11 MPa
Explanation:
The explanation is attached in the attachments.
Given :
Initial velocity , u = 0 m/s² .
To Find :
The acceleration of the cart.
Solution :
Since, acceleration is constant.
Using equation of motion :

Putting, t = 1 s and x = 4 m in above equation, we get :

Therefore, the acceleration of the cart is 8 m/s².
Answer:

Explanation:
v = Velocity of Ferdinand = 5 m/s
= Angle of jump
T = Time taken = 0.6 s
R = Distance between lily pads = 2.4 m
Horizontal range is given by

The angle at which Ferdinand make each of his jumps is 