David drove the first 6 hours of his journey at 65 km/hour and the last 3 hours of his journey at 80 km/hour. how far is the who
1 answer:
You might be interested in
Answer:
= F Δt / m
Explanation:
The impulse theorem and momentum is
I = Δp
F Δt = m - m v₀
Before touching the ball is without movement, the force is represented by the kinetic energy of the club when it reaches the bottom of the path, so if this force is constant, the time [or the duration of the blow is directly proportional to the speed that the ball acquires.
= F Δt / m
The higher this speed, the greater the distance traveled.
Answer:
55 kg
Explanation:
spring constant (k) = 600 N/m
mass of chair (Mc) = 12 kg
period of oscillation of chair and man (T) = 2.1 s
what is the mass of the astronaut (Ma) ?
mass of the astronaut (Ma) = total mass (Mt) - mass of chair (Mc)
where
- total mass (Mt) =
taking π as 3.142
total mass (Mt) =
total mass (Mt) = 67 kg
therefore
mass of astronaut = 67 - 12 = 55 kg