Asked by OHara
A car of mass 550kg accelerates steadily from rest to 25m/s in 30s.
a). What is its acceleration?
b). What resultant force produces this acceleration?
c). The actual force will be greater, why?
a). What is its acceleration?
b). What resultant force produces this acceleration?
c). The actual force will be greater, why?
Answers
Answered by
bobpursley
I will be happy to check these for you, please show your thinking.
Answered by
OHara
I think I have a little idea on Q.a) only.
F = ma
= 550 x 25
=13750N
so acceleration is
a = v - u/t
=25 - 0/30
=0.83 ms^-2
that's all i know. I don't know about Q.b and Q.c.
F = ma
= 550 x 25
=13750N
so acceleration is
a = v - u/t
=25 - 0/30
=0.83 ms^-2
that's all i know. I don't know about Q.b and Q.c.
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