Explanation:
Formula to calculate lateral strain is as follows.
Lateral strain =
=
=
=
It is known that,
v =
Lateral strain =
=
Thus, we can conclude that the change in the depth dimension d of the block is 0.00441 mm.
Answer:
Velocity of skater after throwing the snowball is 2.57 m/s
Explanation:
Given :
Mass of skater, M = 62.2 kg
Mass of snowball, m = 0.145 kg
Velocity of snowball relative to ground, v = 39.3 m/s
Consider v₁ be the velocity of skater after throwing the snowball.
According to the problem, initially the velocity of skater and snowball is same. So,
Velocity of skater before throwing snowball, u = 2.66 m/s
Applying conservation of momentum,
Momentum before throwing snowball = Momentum after throwing snowball
(M + m) u = Mv₁ + mv
Substitute the suitable values in the above equation.
v₁ = 2.57 m/s
there it is fella tried on ma own consciousness
Answer:
E. The momentum of the car-truck system is conserved, but the momentum of each one separately is not conserved.
Explanation: