card games
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bird watch
write a song
make a game
count stuff
throw a ball with someone
play outside
He proposed the theory of relativity. =)
Answer:
5.7 s
Explanation:
Given:
a = 3.0 m/s²
v₀ = 8.0 m/s
v = 25.0 m/s
Find: t
v = at + v₀
25.0 m/s = (3.0 m/s²) t + 8.0 m/s
t ≈ 5.7 s
Answer:
2 N/m²
Explanation:
Pressure is defined as the force acting on a unit area .
Therefore;
Pressure = Force /Area
Force = 4 N
Area = 2 m²
Therefore;
Pressure = 4 N/ 2m²
= 2 N/m²
Answer:
height of the cliff = 74.529 meters
Explanation:
in this problem we will write projectile motion equations in x and y directions.
writing the equation of motion

where s is the distance traveled in x or y direction, u the initial velocity in x or y direction, t is the time travelled, a is the acceleration along x or y direction.
therefore along y direction
= 0 and
= -9.8 m/
.
therefore along y direction the equation becomes
applying the values 