WAEC - Physics (1993 - No. 33)
Calculate the escape velocity of a satellite launched from the earth’s surface (Take g as 10ms-2 and the radius of the earth as 6.4 x 106m)
8.00 x 106ms-1
1.13 x104ms-1
3.58x102ms-1
5.59 x10-2ms-1
3.95x10-2ms-1
ব্যাখ্যা
V = √2gr
= √2 x 10 x 6.4 x 106
1.13 x 104ms-1