Question

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Answer 1

Answer

Acceleration (a) =5m/s2=5m/s2 and Mass (m) = 1000 kg, therefore, Force (F) =?

We know that, F=m×aF=m×a

=1000kg×5m/s2=1000kg×5m/s2

=5000kg m/s2=5000kg m/s2

Therefore, required Force =5000m/s2=5000m/s2 or 5000 N

Question 2: If the mass of a moving object is 50 kg, what force will be required to speed up the object at a rate of 2ms–2?

Solution: According to the question;

Acceleration (a) =2ms−2=2ms-2 and Mass (m) = 50 kg, therefore, Force (F) =?

We know that, F=m×aF=m×a

=50kg×2m/s2=50kg×2m/s2

=100kg m/s2=100kg m/s2

Therefore, required Force =100m/s2=100m/s2 or 100 N

Question 3: To accelerate a vehicle to 3m/s2what force will be needed if the mass of the vehicle is equal to 100 kg?

Solution: According to the question:

Acceleration (a) =3m/s2=3m/s2 and Mass (m) = 100 kg, therefore, Force (F) =?

We know that, F=m×aF=m×a

=100kg×3m/s2=100kg×3m/s2

=300kg m/s2=300kg m/s2

Therefore, required Force =300m/s2=300m/s2 or 300 N

Explanation

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Answer 2

Answer:

1. What is matter made of?

2. Why is gravity so weird?

3. Why does time seem to flow only in one direction?

4. Where did all the antimatter go?

5. What happens in the gray zone between solid and liquid?

6. Can we find a unified theory of physics?

7. How did life evolve from nonliving matter?