Answer:
v = 66.4 m/s
Explanation:
As we know that plane is moving initially at speed of
now we have
now in Y direction we can use kinematics
since there is no acceleration in x direction so here in x direction velocity remains the same
so we will have
What system ??? There’s no picture
Answer:
Their working speed = 5 km/ hour and 3 km/ hour
Explanation:
Let their speeds be x and y
2 ( x+y) =16
x+y = 8 .....................(A)
Assuming x is > y
8x- 8y = 16
x- y = 2 ................(B)
(A) + (B) 2x = 10
x = 5 km/ hour y = 3 km/ hour
So, acceleration is the change of velocity in time. If no vectors are used, one can use speed:
a = (final speed - start peed)/ time = 10/5= 1 m/s^2,
Notice that the units are m/s^2, or (m/s)/s. That is speed (m/s) per unit time (s)
Explanation :
(1) The path of motion of a thrown javelin is an example of projectile motion. It is a type of motion that is experienced by an object that is thrown near the earth's surface. The object then moves along a curved path under the influence of gravity.
(2) Force is the product of mass and velocity i.e. F = ma
So,
Hence, the acceleration of an object is equal to net<em> force</em> acting on the object dividing by the objects<em> mass.</em>
(3) The pressure exerted by a fluid at any given depth is exerted <em>uniformly </em>in all directions.
(4) Mass of canoe, m = 38 Kg
velocity of canoe, v = 2.2 m\s
momentum is given by, p = mv
So, momentum of canoe is 83.6 Kgm/s
(5) Acceleration is given by the rate of change of velocity per unit time. If is final velocity and is initial velocity,
Then change in velocity will be
since,
So,