Explanation:
According to the free body diagram attached below, there are only two forces that are acting upon the block, namely the force tension of the rope acting upwards and the weight of the block acting downwards.
Therefore, the magnitude of the net (resultant) force exerted on the block is
.
Since the magnitude of 
> magnitude of 
, this implies that the block will accelerate upwards.
Impulse is caused by a force during a specific time that is equal to the body's change of momentum
Impulsive force: the process of minimizing an impact force can be approched
Earth and a planetesimal collision occurred while the surface rocks of the moon were impacted, and was creating a fine dust. This is also called the giant.
Given Information:
Mass = m = 95 kg
Initial velocity = v₁ = 0 m/s
Final velocity = v₂ = 3 m/s
time = t = 15 seconds
Required Information:
magnitude of average force = ?
Answer:
magnitude of average force = 19 N
Explanation:
From the Newton's second law of motion
F = ma
From the kinematics equations,
v₂ = v₁ + at
at = v₂ - v₁
a = (v₂ - v₁)/t
a = (3 - 0)/15
a = 0.2 m/s²
F = 95*0.2
F = 19 N
Therefore, the magnitude of the average force required to bring the sled to rest is 19 N.
Answer:
1 m/s²
Explanation:
From the question,
Using
a = (v-u)/t.................... Equation 1
Where a = accelartion of the bicycle, v = Final velocity, u = initial velocity, t = time.
Given: v = 15 m/s, u = 5 m/s, t = 10 s
Substitute these values into equation 1
a = (15-5)/10
a = 10/10
a = 1 m/s²
Hence the acceleration of the bicycle is 1 m/s²
