Question

hii guys plz help plz it very important



1.how does inirtia changes along with mass ??


2. a motor boat starting from rest on a lake accelerates in a straight line at a constant rate of 3m/ second square for 8seconds how far does the boat travel during this time ??


3. A girl of mass 4kg jumps with a horizontal velocity of 5m/s onto a stationary cart with frictionless wheels. the mass of cart is 3kg. what is her velocity as the cart starts moving? Assume that there is no external unbalanced force working in horizontal direction.​

Answer 1

Answer:

1)Mass. Mass, in physics, quantitative measure of inertia, a fundamental property of all matter. It is, in effect, the resistance that a body of matter offers to a change in its speed or position upon the application of a force. The greater the mass of a body, the smaller the change produced by an applied force.

2)Equation of kinematics: motion :

         s = u t + 1/2 a t²

   here u = 0 m/sec  a = 3.0 m/sec/sec    t = 8.0 sec

           s  = 0 * 8.0 + 1/2 * 3 m/sec² * (8.0 sec)²

      distance travelled in 8 sec = 96 meters

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