First we need to convert the angular speed from rpm to rad/s. Keeping in mind that
the angular speed is
And so now we can calculate the tangential speed of the child, which is the angular speed times the distance of the child from the center of the motion:
Answer: Your answer is 1250J
Explanation:
K
E
=
1/2
m
v
2
The mass is
m
=
25
k
g
The velocity is v
=
10
m
s
−
1
So,
K
E
=
1
/2
x25
x
10
2^2=
1250
J
pls mark brainiest answer
Answer:
he covered 80km his displacement was 20km
Explanation:
displacement is the distance from the starting point so in this case its 20 (50-30) and total distance covered is how many kilometers he drove in total
Answer:
83.055 m
Explanation:
According to the given scenario, the calculation of skid distance is shown below:-
Where
u = 11.3
v = 0
t = 14.7
Now placing these values to the above formula,
So,
= 83.055 m
Therefore for computing the skid distance we simply applied the above formula i.e by considering the all items given in the question
ANSWER
Both trucks will move together with speed v = 6.67 m/s
so correct answer will be
The speed of the combined vehicles is less than the initial speed of the truck.
EXPLANATION
As we know that there is no external force on the system of two trucks
So here momentum of the two trucks before collision and after collision will remain same
So here we will have
so here we will have
now we will have
so correct answer will be
The speed of the combined vehicles is less than the initial speed of the truck.
