Comets orbit the sun just like planets do. Except a comet usually has a very elongated orbit. Thanks to the laws of gravity comets obey the same laws. A comets orbit takes it very close to the sun and then far away again.
Ns
When the force on an object is multiplied by the time it is acting, the Impulse of a force is generated. This is a vector unit and is equal to the change in momentum with its unit as kilogram meter per second (kgms) or Newton Second (Ns)
Answer:
σ = 4.1 MPa
Explanation:
Given that
m= 2.5 kg
v= 32 km.hr
v= 8.88 m/s
The kinetic energy of the mass ,KE
KE = mv²/2
KE = 2.5 x 8.88²/2
KE= 98.56 J -------1
The strain energy of the string
----2
KE= E
σ = 4.1 MPa
Explanation:
Average speed =total distance ÷ total time
speed = d ÷ t
d= 74400
t= 16
then,
speed = 74400÷16
=4650