The total distance traveled by the body is the sum of the distance it traveled for the first five seconds which is 10 m and that of the next five seconds which is 30 meters. Thus, the total distance traveled is 40 m. Dividing this by the time, will give the average speed. The average speed is therefore, 4 m/s. The answer is letter C.
Jets and planes can fly in the stratophere
Input = 2,150 J; Output = 750 J
The efficiency of the engine = Output / Input = 750 J / 2,15 J = 0.3488
Answer: 0.3488 or 34.88 %
Answer:38.675 m/s
Explanation:
t=4.2 s
Solving in x direction
ucos25=25
u=27.584 m/s
Initial velocity in vertical direction usin25
Let h be the height of Rooftop
h=37.47 m
Therefore final vertical velocity is 
=29.51 m/s
Final Resultant velocity
Answer:
The angle of bend = 20°
Explanation:
Since the question describes that the angle marking is similar to the metre stick marking.
The length of the object when it begins at 0 meters on the meter rule
= 1.2 m
The length of the meter stick when it begins at 0.2 m on the meter rule
= 1.0 m
The difference in length of the object based on the markings
= 1.2 - 1.0 = 0.2 m
If the green marking is on 223°, i.e. θ₂ = 223°
and the straight marking is on 253°, i.e. θ₁ = 253°
The angle of bend = θ₁ - θ₂
The angle of bend = 253° - 223°
The angle of bend = 20°
