So obviously the 20N pulls more than the 5N. Friction opposes direction of motion, so the 5N opposes the 20N and the two forces are against each other.
Net force would be in the direction of the 20N force: 20N - 5N = 15N.
Force = mass*acceleration
15 = (5)*acceleration
acceleration = 3m/s^2
1. For better aerodynamics and easier air flow while flying.
2. Because we generate friction that lights a match
4. Without friction we couldnt walk(we would slip around like on ice), cars wouldnt stick on road while driving.
3. Grooves in the tyres are designed to allow water to be expelled from beneath the tire and prevent hydroplaning.
Answer:
A 26m
Explanation:
firstly the answer will not be part c as distance unit will be meters (m)
next, substitute the values of a and t as shown
the answer rounded off to 2 significant figures will be hence 26m
Answer:
The acceleration of gravity on the Moon is only one-sixth of that on Earth. If we hit a baseball on the moon with the same effort(and at the speed and angle)that we would on earth, the ball would land 6 times as far. The ball on the moon will cover 6 times more distance than Earth.
Explanation:
Speed=distance travelled/Time required speed
Speed=d/t
Acceleration of gravity on earth=9.8 m/s^2
Acceleration of gravity on Moon=1.62 m/s^2
So the maximum height of ball will be the ration of these both gravity.