the neutron I hope i could help :)
Answer:
The required equation is y(t) = -10.34 + 0.4t + 10.4e^(-0.038t)
The velocity is the first derivative of y(t)
The acceleration is the second derivative of y(t).
Explanation:
The required equation is found by taking the first and second derivative for velocity and acceleration respectively and setting the equations given to the boundary conditions given. The complete solution can be found in the attachment below.
Thank you for reading.
Answer:
F = 30 N Directed up
Explanation:
We can solve this problem using the momentum and momentum relationship.
I = ΔP
I = ∫ F dt
As we are asked for the average force, that leaves the integral, giving
I = F t
F t = m
- m v₀
F = m (
-v₀) / t
Note that, if you define the upward positive direction, the initial velocity is negative
Let's calculate
F = 0.15 (3.5 - (-6.5)) / 0.050
F = 30 N
Directed up
newton 1st law: w no external force, a body will stay at rest or in constant uniform motion.
a motor raises the car up the tower. cuz it moves w/ constant vel, there is no external force: the motor force is the same n in opposity direction as the gravity force on car.
Left.
Forces going left are always negative and forces going right are always postive.
(-)24N. (+)20N
<-----------◼----------->
+20N -24N=
-4N
Left