Explanation:
initial height, yo = 2 m
initial velocity, u = 20 m/s
angle of projection,θ = 5 degree
distance of net = 7 m
height of net = 1 m
Let it covers a vertical distance y in time t .
Use Second equation of motion for vertical motion
As it hits the ground in time t, so put y = 0
Taking positive sign, t = 0.84 s
The ball travels a horizontal distance x in time t
X = 20 Cos5 x t
X = 16.76 m
As this distance is more than the distance of net, so it clears the net.
Let t' be the time taken to travel a horizontal distance equal to the distance of net
7 = 20 cos5 x t'
t' = 0.35 s
Let the vertical distance traveled by the ball in time t' is y'.
So,
y' = 2.008 m
So, it clears the net which is 1 m high.
It clears the net by a vertical distance of 2.008 - 1 = 1.008 m and horizontal distance 16.76 - 7 = 9.76 m
your welcome, and have a great day.
Answer:
A car traveling south with its cruise control set
Explanation:
Turning could cause anything to slow down but going forward could mean that anything could go faster.
Answer:
true 1Ay 2D
Explanation:
1) In this exercise you are asked to investigate which statements are true
A) True. The friction force opposes the movement caused by the external force,
B) False. Mantuano in the opposite direction force
C) False. The static and scientific friction force act in the same direction, since the second appears when the movement does not start and the static friction decreases.
D) Fale the static and kinetic friction forces act in the same direction
2) How to overcome friction on a ramp
A) False. If the texture of the surface becomes rough, the friction force increases
B) False. Pressing the brick against the surface increases the normal and as the friction is proportional to the normal, it also increases
C) False. By lowering the table the weight component in the friction direction decreases
D) True. When lifting the board, the weight component increases and therefore can become greater than the friction
Wx-fr = ma
W sin tea - my mg cos tea = m a
As it increases, the sine increases and the cosine decreases.
Answer:
It happens due to force of friction
Explanation:
If a body is performing a uniform motion and no external unbalanced force appears to apply on it, then the body will come to rest after certain time. The reason behind this is the force of friction that is applied in opposite direction of the motion. So, when there is no apparent unbalanced force it means that the only force acting on the body is the force of friction. This force of friction tends to stop the motion after some period of time, because it is acting in the direction opposite to that of motion.
Hence, the reason behind a body undergoing uniform motion eventually stops is <u>Force of Friction.</u>
D.) It is an "Element".
[ Element cannot be separated by any means ]
Hope this helps!
