dean is slowing down on his skateboards. he starts at a speed of 5.5 m/s and slows to 1.0 m/s over a time of 3.0 seconds. what i
s dean's acceleration?dean is slowing down on his skateboards. he starts at a speed of 5.5 m/s and slows to 1.0 m/s over a time of 3.0 seconds. what is dean's acceleration?
1 answer:
You might be interested in
Question 1.
- mass = 4500 kg
- potential energy (p.e) = 67500 J
now, we know :
=》
=》
=》
=》
=》
note : if we take acceleration due to gravity as 9.8, then height = 1.53 m
Question 2.
- mass = 4500 kg
- kinetic energy = 63000 j
we know,
=》
=》
=》
=》
=》
=》
or
=》
