When mountains are young, like the Rocky Mountains, they are very tall, with sharp jagged shapes. When mountains are old, they
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The car's velocity after 5s : 10 m/s
<h3>Further explanation</h3>Given
velocity=v=72 km/h=20 m/s
time=t = 5 s
acceleration=a = -2 m/s²
Required
velocity after 5s
Solution
Straight motion changes with constant acceleration
vf=final velocity
vi = initial velocity
Input the value :
The car is decelerating (acceleration is negative) so that its speed decreases