Answer:
Speed, being a scalar quantity, is the rate at which an object covers distance. The average speed is the distance (a scalar quantity) per time ratio. ... Velocity is the rate at which the position changes. The average velocity is the displacement or position change (a vector quantity) per time ratio.
Explanation:
Answer:
68.9233231661
Explanation:
Just put it into your calculator, shift sin should do it but it will come up like this:
which is the same as arcsin
Momentum = mass x velocity = 91x9 = 819 kg-m/s.
Explanation:
power=f×v. recall= distances/ time
= f× d/t
= 30 × 2/5
=12watt