11th Physics chapter 2
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– Motion in a straight line
– Summary: Motion involves change in position with time. This chapter focuses on describing motion with concepts of velocity, acceleration, kinematic equations for uniformly accelerated motion, and relative velocity.
– Instantaneous velocity and speed
– Summary: Instantaneous velocity is the limit of average velocity as time interval approaches zero, while speed is the magnitude of velocity. Acceleration can result from changes in speed, direction, or both.
– Acceleration
– Summary: Acceleration can be positive, negative, or zero, and it can result from changes in speed, direction, or both. The chapter focuses on motion with constant acceleration.
– Kinematic equations for uniformly accelerated motion
– Summary: For uniformly accelerated motion, simple equations relate displacement, time taken, initial velocity, final velocity, and acceleration. The equations are applicable for one-dimensional motion with constant acceleration by substituting proper values with signs .
What is the velocity of the object at t = 0 s and t = 2.0 s, given that a = 8.5 m and b = 2.5 m s–2?
What is the average velocity between t = 2.0 s and t = 4.0 s, if the speed equation is given as v = 5.0 t m s–1?
Define acceleration and explain how it is calculated over a time interval.
Explain the concept of free fall and uniform acceleration with respect to the motion of an object under gravity.
In rectilinear motion with constant acceleration, what are the three important equations connecting v0, v, a, t, and x?
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