For this problem, you should be able to differentiate the variables presented from each other in order to substitute them in their corresponding places in the formula or formulas to be utilized in this problem. As for this problem, the only formula to be utilized would be the formula for power which is force multiplied to distance over time or simply have force multiplied to speed since speed is equal to distance over time.
The formula would like this:
Power = force x distance / time Power = force x speed
P = 490 N x 2 m / 10 s P = 490 N x (2 m / 10 s)
P = 980 N m / 10 s P = 490 N x 0.2 m / s
P = 98 W P = 98 W
So the average power required to lift a 490-newton object a vertical distance of 2.0 meters in 10 seconds would be 98 watts.
V= s/t
=
5.15/ 350
=68.0 km/h
<span>Car B has a greater momentum than car A.
Since, momentum = mass * velocity
mass of both car A and B is same, velocity of B is greater than A.
So, momentum of car B = 1200 * 25 = 30,000 kg-km/h is greater than </span>momentum of car A = 1200 * 22 = 26400 kg-km/h
Answer:
The Force exerted by the two objects will be same and 4,401,189.49 × 10−11 N
Explanation:
Let m1 be the mass of the first object and m2 be the mass of the second object and the distance between them be d. Then
m1= 181kg
m2= 712 kg
d= 0.442 m
G is the gravitational Constant
According to Newtons Law Gravitational Force is given by
F=G m1 m2 /d²
F= 6.672 × 10−11 ×181×712/(0.442)²
F= 859,576.24 × 10−11/0.195364
F= 4,401,189.49 × 10−11 N
The Force exerted by the two masses on the third mass will be same and 4,401,189.49 × 10−11 N
Answer:
when you switch off an electrical curcuit you tend to create a 'break' in the curcuit,preventing the electric current to flow around the curcuit,this can be caused by a simple switch or 'break'
Explanation:
