The car's final velocity is 11.6 m/s in the opposite direction.
1. It has a negative value
I think one of them is composed primarily of plant material,
and the other is composed primarily of dead dinosaurs.
Answer:
The rise from A to B is 0.887
Solution:
As per the question:
The following reading of an inverted staff is given as:
A = 2.915
B = -2.028
Here, for inverted staff, the greater reading shows greater elevation and lesser reading shows lower elevation.
Thus
The rise from A to B is given as:
A - B = 2.915 - 2.028 = 0.887
Answer
given,
time of disk stayed a loft = 16.7 sec
height reached = 18.4 m
mass = 72 kg
now work done is equal to change in potential energy



W = 12983.04 J
Positive sign means that work is in the direction of motion.



P = 777.42 Watts