Answer:
In physics, a force is any interaction that, when unopposed, will change the motion of an object. A force can cause an object with mass to change its velocity, i.e., to accelerate. Force can also be described intuitively as a push or a pull. A force has both magnitude and direction, making it a vector quantity.
Explanation:
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Answer:
the acceleration of the rocket is: a=vemΔmΔt−g a = v e m Δ m Δ t − g .
Explanation:
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The initial speed of the ball is 5 m/s
Explanation:
We can solve the problem by using the law of conservation of momentum: in absence of external forces, the total momentum of the skater + ball system must be conserved. So we can write:
where:
m = 5 kg is the mass of the ball
u is the initial velocity of the ball
M = 45 kg is the mass of the ice skater
V = 0.5 m/s is the final velocity of the skater+ball together
Solving for u, we can find the initial velocity of the ball:
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Given Information:
Mass = m = 500 kg
Acceleration = a = 10 cm/s²
Required Information:
Magnitude of rightward net force = F = ?
Answer:
Magnitude of rightward net force = 50 N
Explanation:
From the Newton's second law of motion
F = ma
Where m is the mass and a is the acceleration
To get force in Newtons first convert 10 cm/s² into m/s²
10/100 = 0.1 m/s²
F = 500*0.1
F = 50 N
Therefore, the magnitude of rightward net force acting on it is 50 Newtons.