20,611.
E = 250N
A.
25N
B.
90N
C.
96N
D.
250N
E.
960N
Correct answer is D
Efficiency =
M.AV.R
x 100%=
80100
= 120 x 10E
E = 250N
20,612.
A.
2.53 x 104ms-1
B.
1.13 x 104ms
C.
8.00 x 103ms-1
D.
4.23 x 103ms-1
E.
6.41 x 104ms-1
Correct answer is B
V = √2gR
V = √2 x 10 x 6.4 x 102
1.13 x 104ms
20,613.
A.
20.0kg ms-1
B.
10.0kg ms-1
C.
5.0kg ms-1
D.
1.3kg ms-1
E.
0.0kg ms-1.
Correct answer is A
Impulse = Ft = mu - (-mu)
= mu + mu = 2mu = 2 x 5 x 2 = 20kgms-1
20,614.
A.
50m
B.
65m
C.
175m
D.
225m
E.
300m
Correct answer is D
Distance of A = 1/2 x (10 + 20) x 5
= 1/2 x 30 x 5 = 75m. Distance of B = 20 x 5 = 100m
Distance of C = 1/2 x 5 x 20 = 50/225
∴ Total distance is 225m
20,615.
A.
Circular
B.
Rotational
C.
Random
D.
Oscillatory
E.
Translational
Correct answer is D
No explanation has been provided for this answer.
WAEC Subjects
Aptitude Tests