Theory
Free Falling Acceleration
9.8 m/s2
If the mass of body is 10 kg, find its weight?
98 N
Unit of Pressure in SI?
Pascal
Convert 120 km/h to m/s?
33.3 m/s
Formula of DENSITY?
ρ=m/V
A baseball player throws a ball with a force of 10 N. The ball travels 20 meters. What is the total work?
W = F * distance W = 10 N* 20 meters W = 200 joules
How far is the Sun approximately from the Earth?
150 million km
If a block weighs 60 N and is lying on a side with area 2m by 3m, what is the pressure exerted on the surface?
Pressure = Force ÷ Area P = 60 N ÷ (2m x 3m) P = 60 N ÷ (6m2) P = 10P
Why you lean forward when a bus stops?
Cause of inertia
A ball weighs around 1 kg and is traveling at 20 meters per second, what is its kinetic energy?
KE = 1/2 * m * v2
KE = 1/2 * 1kg * (20 m /s)2
KE = 200 J