31. Calculate the instantaneous speed of an apple that falls freely from a rest position and
accelerates at 10 m/s2 for 1.5 seconds.

Molten iron fills a mould, which has a volume of 200 cm cubed. calculate the volume when the iron cools and solidifies.

Awoman holds a book by placing it between her hands such that she presses at right angles to the front and back covers. the book has a mass of m = 1.8 kg and the coefficient of static friction between her hand and the book is μs = 0.67. no attempt 50% part (a) what is the weight of the book, fgb in newtons?

Ain is , is 's of ? 0.62 0.79 1.27 1.50