Welcome to Westonci.ca, the place where your questions find answers from a community of knowledgeable experts. Experience the ease of finding precise answers to your questions from a knowledgeable community of experts. Explore comprehensive solutions to your questions from knowledgeable professionals across various fields on our platform.
Sagot :
Answer:
3600N
Explanation:
Given: m = 1200kg, Vo = 0m/s, Vf = 30m/s, Δt = 10s
ΣF = ma
we need to find 'a' first, using the definition of 'a' we get equation:
a = (Vf-Vo)/Δt
a = (30m/s)/10s
a = 3 m/s^2
now substitute into top equation
ΣF = ma
Fengine = (1200kg)(3m/s^2)
Fengine = 3600N
Answer:
P = 54000 W or P = 54 kW
Explanation:
P = Work/time
W = Force * distance
first, find acceleration to find net force using kinematics.
v = vo + at
30 = 0 + a(10)
a = 3 m/s^2
Fnet = ma = 1200(3) = 3600N = Force
Next, find the distance traveled using kinematics.
∆x = vo(t) + 1/2at^2
∆x = 0(10) + 1/2(3)10^2
∆x = 150 m
Now use the force and distance you just calculated to find the work done.
W = Force*distance
W = 3600N * 150m
W = 540000
Calculate power.
P = W/t
P = 540000/10
P = 54000 W
or
P = 54 kW
Visit us again for up-to-date and reliable answers. We're always ready to assist you with your informational needs. Thank you for your visit. We're committed to providing you with the best information available. Return anytime for more. Discover more at Westonci.ca. Return for the latest expert answers and updates on various topics.
