Your answer is B, or the second one with the squiggly line.
Answer:
6 m/s²
Explanation:
We are given;
- The mass of the block as 6.2 kg
- Horizontal force as 50.9 N
- Frictional force as 13.7 N
We are required to determine the acceleration of the block.
- According to second Newton's Law of motion; Resultant force is directly proportional to the rate of change in linear momentum.
Therefore;
F = Ma , where F is the resultant force, m is the mass and a is the acceleration.
In this case;
Resultant force, F = Horizontal force - friction force
= 50.9 N - 13.7 N
= 37.2 N
Thus;
37.2 N = 6.2 kg × a
Hence;
acceleration, a = 37.2 N ÷ 6.2 kg
= 6 m/s²
Therefore, the acceleration of the block is 6 m/s²
By collapsing and crumpling, the force and energy is absorbed by the crumple zone and it is not transferred to the passengers inside. This is a safety feature for the passengers.
Answer:
<h2>150 kg.m/s</h2>
Explanation:
The momentum of an object can be found by using the formula
momentum = mass × velocity
From the question we have
momentum = 10 × 15
We have the final answer as
<h3>150 kg.m/s</h3>
Hope this helps you