Year : 
1979
Title : 
Mathematics (Core)
Exam : 
JAMB Exam

Paper 1 | Objectives

51 - 51 of 51 Questions

# Question Ans
51.

The area under the speed time graph given the total distance covered by car. What is the average velocity to two places of decimals?

A. 17.72 meter/sec.

B. 21.67 meters/sec

C. 2.5 meter/sec.

D. 20.45 meters/sec.

E. 13.33 meter/sec.

Detailed Solution

Time(sec) areas of the three sides are \(\frac{1}{2}\) x 2 x 20 = 20 x 2 = 40

\(\frac{1}{2}\) x 4 x 20 = 40

40 + 40 = 80

vel. = \(\frac{80}{4}\)

20 + 0.45 = 20.45 meter/sec.
51.

The area under the speed time graph given the total distance covered by car. What is the average velocity to two places of decimals?

A. 17.72 meter/sec.

B. 21.67 meters/sec

C. 2.5 meter/sec.

D. 20.45 meters/sec.

E. 13.33 meter/sec.

Detailed Solution

Time(sec) areas of the three sides are \(\frac{1}{2}\) x 2 x 20 = 20 x 2 = 40

\(\frac{1}{2}\) x 4 x 20 = 40

40 + 40 = 80

vel. = \(\frac{80}{4}\)

20 + 0.45 = 20.45 meter/sec.