Qualification > Math

M1 doubts

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Phosu:
more the mass, more the resistance....
so the resistance of car will be more than that of the caravan.
well you could find the ratio of mass car:caravan, which is 2:1
find the total resistance force, and then divide the resistance in the ratio.

immortal:
give me 5min

Saladin:
https://studentforums.biz/index.php/topic,5617.0.html

This is the exact same question asked before. Hope you find it useful.

immortal:
u=0   v=4     s=16     a=?
v2=u2+2as
42=2*a*16
a=0.8

F-R=ma
2200-R=(1000+500)*0.8
R=1000N

Ratio of mass   2:1
Car resistance=666.67    caravan resistance==333.33

T-R=ma
T-333.33=500*0.8
T=733.33

plz post da ms ans to b sure.

halosh92:
thx all
but immortal only 733.3 is correct the rest is wrong :S
the answers:966.66        , and     ,       483.33 ,             and ,      733.33

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