2. The velocity-time graph of a hard ball of mass 100g moving along a straight line along a concrete track is given below. Calculate(a) the acceleration(b) force exerted by the track to bring the ball to rest.

2. The velocity-time graph of a hard ball of mass 100g moving along a

1.	2. The velocity-time graph of a hard ball of mass 100g moving along a straight line along a concrete track is given below. Calculate(a) the acceleration(b) force exerted by the track to bring the ball to rest.
Answer» acceleration = -1.2 m/s² 0.12 NExplanation:from Graph it is very CLEAR thatVelocity at t = 0 sec is 12 m /sVelocity at t = 10 sec is 0 m/sacceleration = (0 - 12)/(10 - 0)= -12/10= -1.2 m/s²acceleration = -1.2 m/s²Force = mass & accelerationMass = 100G = 0.1 kg=> Force = 0.1 * 1.2 = 0.12 NFORCE EXERTED by the track to bring the ball to rest = 0.12 N

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2. The velocity-time graph of a hard ball of mass 100g moving along a straight line along a concrete track is given below. Calculate(a) the acceleration(b) force exerted by the track to bring the ball to rest.​

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2. The velocity-time graph of a hard ball of mass 100g moving along a straight line along a concrete track is given below. Calculate(a) the acceleration(b) force exerted by the track to bring the ball to rest.