NECO 2020 - FURTHER MATHS ANSWER

FURTHER MATHS OBJ
1-10: EAAEDDBADB
11-20: DBCDDCBBAA
21-30: CEABCCCBDC
31-40: ACBCBEDCAB
41-50: CEDACBADEC
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(13ai)
Given: mass ,m =10kg
Force,F = 40N
Time, t = 0.5secs
Impulse, I = Ft = 40×0.5 = 20Ns

(13aii) Ft = m(v-u) where u= 0 (at rest)
20 = 10(v-0)
20 = 10v
V = 20/10 = 2m/s
Final speed = 2m/s

(13aiii)
Given: u=0 ; v=2m/s ; t=0.5secs

S= 1/2(u+v)t
S= 1/2(0+2)×0.5
S= 0.5 metres
Distance = 1/2 metre or 50cm



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