A 50kg man is in an elevator moving downwards with an acceleration of 1.5m/s^2. What is the weight of the man at this time? (g=10m/s^2)
The average of four different integers is 75. If the largest number is 90, what is the least possible value of the smallest integer?
if y = sin^3 (x) dy/dx = ?
3sin^2 (x) cos(x)