The formula for the potential energy, EP is given by
EP = m × g × h
where:
m is the mass in kilograms
g is the gravity (9.8 m/s²)
h is the height in meters
EP = 6 × 9.8 × 2 = 117.6 kg-m²/s²
Answer:
Average force, F = 286.72 N
Explanation:
Given that,
Mass of the baseball, m = 140 g = 0.14 kg
Speed of the ball, v = 32 m/s
Distance, h = 25 cm = 0.25 m
We need to find the average force exerted by the ball on the glove. It is solved using the conservation of energy as :
F = mg
F = 286.72 N
So, the average
force exerted by the ball on the glove is 286.72 N. Hence, this is the required solution.
Answer:
The velocity 
of the cart with respect to the ground is
if we consider North the positive y-direction and East the positive x-direction.
Explanation:
We have for relative motion the following expression:
Where is the velocity of the cart with respect to the ground, 
is the velocity of the cart with respect to the plane and 
is the velocity of the plane with respect to the ground.
We find that:
Thus:
Yes spoon can sound like a bell. To prove this, we perform an experiment.The handle of the spoon is tied at the mid point of the string, then wrap the ends of the string around pointer fingers. Now place fingers in ears. Lean over so that spoon hangs freely and swing the spoon so it taps against a door.
A sound is produced because the spoon vibrated, causing sound waves to travel up the string and into ears.
Mass is how heavy is it, weight is the size both are the same
