*HELP PLZ IT'S DUE IN 2HRS*
If a cart with a mass of 20 kg is traveling at 5 m/s and speeds up to 25 m/s in 15 seconds. (Intro to GUESS method and acceleration)
What would the acceleration of the cart be?
What would the net force on the cart during this time be?
Answers
Answered by
1
Answer:
Given : m=1000 kg u=10 m/s t=10 s
Applied force F=1000 N (forwards)
Retarding force f=500 N (backwards)
Acceleration of the car in forward direction a=
m
F−f
=
1000
1000−500
=0.5 m/s
2
Using v=u+at
∴ v=10+0.5×10=15 m/s
Explanation:
initial velocity of car(u)=0ms
−1
final velocity of car (v)=30ms
−1
time(t)=10s
we know,
v=u+at
30=0+a(10)
a=3ms
−2
we know,
F=ma
=1500×3
or F=4500N
Answered by
1
Hint: Find acceleration, by formula
, which is v-u/t
Here, v = 25m/s and u = 5 m/s
And find acceleration.
then apply the formula for Force,
Force = Mass × Acceleration
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