Answer:
80
Explanation:
I literally just did this question lol I hope I helped
Firstly let us get the time down to minutes from hours. Then the calculation will become easy.
1 hour and 45 minutes = (60 + 45) minutes
= 105 minutes
So
The distance traveled by the car in 105 minutes = 98 miles
Then
The distance traveled by the car in 60 minutes = (98/105) * 60 miles
= 5880/105 miles
= 56 miles
So the average speed of the car as can be seen from the above deduction is 56 miles per hour.
To solve this problem we will apply the concepts related to the kinematic equations of linear motion. For such an effect we will define the average speed, as the distance traveled in the established time.
Our values are given under the following conditions:



The final distance covered in those 10 seconds at
would be


Therefore the average speed would be the sum of those distances in the total travel time


Therefore the average velocity is 30.5m/s
The impulse given to the ball is equal to the change in its momentum:
J = ∆p = (0.50 kg) (5.6 m/s - 0) = 2.8 kg•m/s
This is also equal to the product of the average force and the time interval ∆t :
J = F(ave) ∆t
so that if F(ave) = 200 N, then
∆t = J / F(ave) = (2.8 kg•m/s) / (200 N) = 0.014 s
0.1 J of elastic potential energy will be stored by the spring when it gets compressed by 0.2 m if it has the spring constant of 5 N/m.
Elastic potential energy can be defined as the potential energy stored by the spring when it is stretched or compressed.
- Amount of energy stored in the elastic material or spring is directly proportional to the amount of compression or elongation.
- It is represented by U.
- Mathematically, U =
; k is the spring constant and x is the compression or expansion suffered by the spring
According to the question.
Compression in the spring, x = 0.2 m
Spring constant, k = 5 n/m
Elastic potential Energy, U = 
U = 0.1 J
0.1 J of elastic potential energy will be stored by the spring.
To know more about elastic potential energy,
brainly.com/question/2611925
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