Question

number of same kind of books height of pile ​

Answer 1

Answer:

In physics, the kinetic energy of an object is the energy that it possesses due to its motion. It is defined as the work needed to accelerate a body of a given mass from rest to its stated velocity. Having gained this energy during its acceleration, the body maintains this kinetic energy unless its speed change

Answer 2

Given that height of each book is 3cm 5mm

We need to find the height of a pile of 25 books in meters

1cm = 10mm

so 3cm = 30cm

3 cm 5 mm = 30 mm + 5 mm

= 35 mm

The height of a pile of 25 books is

25 X 35

= 875 mm

We will convert into meters

1 mm = 0.001 m

875 mm = 0.001 X 875 m

=0.875 m

Height of 25 pile of books is 0.875 m where the height of one book is 3cm and 5mm

Hope it helps ❤️༄