The initial velocity of the car is 11 m/s.
Explanation:
- Here, we can use the equations of motions.
- The first of equation of motion is v = u + at, where v is the final velocity, u is the initial velocity, a is the acceleration, and t is the time.
- The given parameters are,
Final velocity, v = 20 m/s
acceleration of the care, a = 2 m/
time, t = 3 s
Initial velocity, u = ?
- Hence, the equation can be written as u = v - at
once you substitute all these vales, you will get u = 11 m/s
(i)1.5cm
(ii)4.5cm
(iii)10cm
The Universe is always expanding outwards
Answer:
Explanation:
As we know that time period of one revolution around Mars is given as
here we know that
here we know that radius of Mars is given as
mass of Mars is given as
now we have