A= 50/8 m/s^2
<span>vf=at=50/8 * 5= 250/8 m/s at t=5sec </span>
<span>time to get to 50m/s </span>
<span>50=50/8*t or t=8 seconds </span>
<span>distance=1/2 a t^2=1/2 50/8 64 </span>
<span>distance= 400 m check that.</span>
Answer:
2592 km/h
Explanation:
Given that a bullet is shot from a rifle with a velocity of 720 m/s. What is the velocity of the bullet in km/h.
The velocity = 720 m/s
Solution
To convert metres per second to kilometer per hour, you will multiply by 3600 and divide by 1000
720 × 3600/1000
720 × 3.6
72 × 36
2592 km/h
Therefore, the velocity of the bullet in kilometer per hour is 2592 km/h
Answer:
B) 1,2,1,2
Explanation:
- The balanced chemical equation will be;
H2SO4 + 2NaOH → Na2SO4 + 2H2O
- The equation for the reaction is balanced by using coefficients; 1,2,1,2
- According to the law of conservation of mass the mass of the reactants should be equal to the mass of the products.
- For the law of conservation of mass to be obeyed, chemical equations must always be balanced.
Answer:
question 1: force
question 2: velocity or inertia
question 3: 0
Answer:
a toy car being pushed by a kid, a force acts on the car
Explanation:
when the boy is pushing the car a force acts on the car which is the effort that is applied on the car and the motion is unbalanced because there will be constant stopping of the boy and also the force acting on the car
