For an object to move its force must be greater than its mass for able for it to move. Let say you have a 10 kg box and a 50 kg box in the floor. you tried to push the 10 kg and its easier because force depends on its mass and your acceleration. Hope this helps
<h3>2.<u> Answer;</u></h3>
Momentum
<h3><u>Explanation;</u></h3>
- <em><u>Momentum refers to mass in motion, which means that objects that have mass and are in motion, will posses momentum, that is, they have their mass in motion. </u></em>
- <em><u>Momentum is given as the product of velocity of an object and its mass. Therefore, the amount of momentum possessed by a moving object or body is the product of mass and velocity. That is; p = m × v</u></em>
- From the equation, momentum is directly proportional to both mass and velocity.
<h3>3. <u>Answer;</u></h3>
Momentum
<h3><u>Explanation;</u></h3>
- <em><u>During collision, a force acts upon a body for a given amount of time change the velocity of an object. Product of force and time is called impulse</u></em>. The product of mass and velocity change is the change in momentum.
- <em><u>During collision the momentum change experienced by one object is equal in magnitude and opposite in direction to the momentum change experienced by the other object in collision.</u></em>
- That is; M1V1 =M2V2
<h3>4. <u>Answer; </u></h3>
= 250 kgm/s
<h3><u>Solution and explanation;</u></h3>
- <em><u>Momentum is given as the product of velocity of an object and its mass. </u></em>Therefore, the amount of momentum possessed by a moving object or body is the product of mass and velocity.
- That is; p = m × v
- mass = 50 kg, velocity = 5 m/s ; thus momentum will be;
- p = 50 × 5 = 250 kgm/s
Therefore, <em><u>momentum of the ice skater will be; 250 kgm/s</u></em>
Answer:
T = 10 s
Explanation:
First, we need to find the frequency of the object as follows:
where,
Speed = Angular Speed = 6 rpm
Therefore,
Now, for time period (T):
<u>T = 10 s</u>
All of the answers apply because any object can have positive, negative or neutral charges depending on their atoms
Answer:
Thrust due to fuel consumption must overcome gravitational force from the Earth to send the rocket up into space.
Explanation:
From the concept of Escape Velocity, derived from Newton's Law of Gravitation, definition of Work, Work-Energy Theorem and Principle of Energy Conservation, which is the minimum speed such that rocket can overcome gravitational forces exerted by the Earth, and according to the Tsiolkovski's Rocket Equation, which states that thrust done by the rocket is equal to the change in linear momentum of the rocket itself, we conclude that thrust due to fuel consumption must overcome gravitational force from the Earth to send the rocket up into space.