Which law is in control of a spacecraft that cruises through space at ...
Given information:
- Mass of the object = 6 kg
- Three forces acting on the object:
- F1 = 20i + 30j N
- F2 = 8i - 50j N
- F3 = 2i + 2j N
To find: Acceleration of the object
Solution:
- We know that the net force acting on the object, F_net = F1 + F2 + F3
- Using vector addition, we can find the net force: F_net = (20+8+2)i + (30-50+2)j = 30i - 18j N
- Now, using Newton's second law of motion, F_net = m*a, where m is the mass of the object and a is the acceleration produced.
- Substituting the values, we get: 30i - 18j = 6*a
- Dividing both sides by 6, we get: a = (30/6)i - (18/6)j = 5i - 3j m/s^2
Therefore, the acceleration of the object is 5i - 3j m/s^2, which is option 'B'.
Which law is in control of a spacecraft that cruises through space at ...
According to Newton’s first law the spacecraft will continue moving with constant speed unless an external opposite force is applied on it.