Answer:
Explanation:
Equation for translational kinetic energy = 1/2 m V² where m is mass and V is velocity .
In first case let mass of car be m
Translational kinetic energy = 1/2 m x 40² = 800 m .
In the second case ,
Translational kinetic energy = 1/2 m x 20² = 200 m
So , in former case kinetic energy of car is 4 times that of second case.
Answer: tortoise
Explanation:
Given the following :
Speed of tortoise = 1m/s
Speed of hare = 3m/s
Mass of hare = 5kg
Mass of tortoise = 20kg
Momentum = product of Mass and velocity
Momentum of hare = mass of hare × Velocity of hare
Momentum of hare = 5kg × 3m/s = 15kgm/s
Momentum of tortoise = mass of tortoise × Velocity of tortoise
Momentum of tortoise = 20kg × 1m/s = 20kgm/s
Therefore, tortoise has a greater momentum than hare.
It’s hay, most farmers have their livestock eat hay and grass
Answer:
water can be used as displacement to calculate the volume of a solid object.
