Answer:
Time - taken = 2.5 s
deceleration= -8 m/s²
Solution:
Given:
speed, v = 8 m/s
distance, d = 20m
To Find:
deacceleration = ?
As we know speed is defined as
v = d/t
plugging in the values
t = 20/ 8
t = 2.5s
Now from deceleration formula
a = - v/ t
a = - 20/ 2.5
a = - 8 m/s²
Thus, the time taken and acceleration is 2.5 s and -8 m/s²
respectively.
Learn more about deceleration here:
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The force on the truck is F=13650 N
<u>Explanation:</u>
Solving the problem
Given data,
M= 1500 kg
A= 9.1 m/s
We have the formula,
F= M×A
F= 1500 × 9.1
F=13650 N
The Force on the truck is F=13650 N