Answer : The momentum of ball is, 15 kg.m/s
Explanation :
Momentum : It is defined as the motion of a moving body. Or it is defined as the product of mass of velocity of an object.
Formula of momentum is:
where,
p = momentum = ?
m = mass = 1.5 kg
v = velocity = 10 m/s
Now put all the given values in the above formula, we get:
Therefore, the momentum of ball is 15 kg.m/s
Answer:
The metre is currently defined as the length of the path travelled by light in a vacuum in 1299 792 458 of a second. The metre was originally defined in 1793 as one ten-millionth of the distance from the equator to the North Pole along a great circle, so the Earth's circumference is approximately 40000 km
Watchglass is a lab equipment that is used as a cover to prevent heated materials from splattering out of the container and as a holding plate for hot or flammable materials
<u>Explanation:</u>
Watch glass is an equipment used as a cover to prevent heated materials from splattering out of the container and as a holding plate for hot or flammable materials. It is a kind of concave glass which is also used to evaporate a liquid and also provides good air circulation which is used during cooking. The name watchglass was derived as they are see through and so similar to pocket glasses.
Answer:
False
Explanation:
The trachea divides into left and right air tubes called bronchi, which connect to the lungs. Within the lungs, the bronchi branch into smaller bronchi and even smaller tubes called bronchioles.
Hope this helps :)
Answer:
T = 23.92 m
Explanation:
given,
mass of the diver = 50.9 Kg
Resistant force from the water = f = 1492 N
diver come top rest under water at a distance = 6 m
acceleration due to gravity = 9.81 m/s²
final velocity = v = 0 m/s
initial velocity = u = ?
total distance = ?
Now acceleration of body under water
f = m a
using equation of motion
v² = u² + 2 a s
0 = u² - 2 x 29.31 x 6
u = 18.75 m/s
now.
calculating distance of the diver in air
v² = u² + 2 a s
0 = 18.75² - 2 x 9.81 x s
s = 17.92 m
total distance
T = 17.92 + 6
T = 23.92 m
the total distance between the diving board and the diver’s stopping point underwater T = 23.92 m
