Answer:2.05 m
Explanation:
Given
Mass of sled 
initial speed 
coefficient of kinetic Friction 
According to work-energy theorem work done by all the forces is change in Kinetic energy

,where d= distance moved



The approximate speed of sound is about 761 mph or 335.28 meters/second.
<h3>What's the approximate speed of sound?</h3>
If we consider the normal atmosphere at sea level, the speed of sound is about 761 mph or 335.28 meters/second. The speed of sound is different in different mediums such as solid and liquid.
So we can conclude that the approximate speed of sound is about 761 mph or 335.28 meters/second.
Learn more about speed here: brainly.com/question/4931057
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Answer:
- 500kg
Explanation:
momentum calculator online
Answer:
1.25 m
0.5 s
Explanation:
Given:
v₀ = 5 m/s
v = 0 m/s
a = -10 m/s²
Find: Δy
v² = v₀² + 2aΔy
(0 m/s)² = (5 m/s)² + 2 (-10 m/s²) Δy
Δy = 1.25 m
Find: t
v = at + v₀
(0 m/s) = (-10 m/s²) t + (5 m/s)
t = 0.5 s
In projectile motion horizontal motion has zero acceleration and when there is no air resistance acting on the object the motion will be uniform. Motion in the vertical direction is accelerated downwards to to the acceleration due to gravity