While the rockets are being fired the force is acting onto astronaut. According to a Newton's second law the formula is:
F = m * a
After the mass of the astronaut is doubled the force remains same. In order to get everything correct acceleration must be halved.
F = 2m * a/2
Smaller acceleration would result in smaller final speed.
Answer:
Lost energy = 2J
Explanation: Given that the
Mass of the pendulum M = 1.0kg
Initial energy E = 10J
Height h = 0.1 m
Speed V = 4 m/s
Let us use conservation of energy to analyze the senero
The maximum P.E at the initial position will be equal to maximum P.E for travelling down the hill
I.e
Total P.E = total K.E
K.E = 1/2MV^2
K.E = 1/2 × 1 × 4^2
K.E = 8J
Since P.E = K.E
P.E = 8J
But initially energy E = 10J
Lost energy = P.E - E
Lost energy = 10 - 8 = 2J
Answer:
The volume of the balloon wil increase to the double of the initial volume.
Explanation:
p2= p1/2
p1*v1= p2*v2
p1*v1= p1/2 * v2
p1*v1 / p1/2 = v2
2* v1 = v2