NCERT Exercise 2.6 - Motion in a Straight Line
Question: A player throws a ball upwards with an initial speed of 29.4 m s?�. (a) Direction of acceleration during upward motion? (b) Velocity and acceleration at the highest point? (c) Signs of x, v, a during upward and downward motion (x = 0 at highest point, downward positive). (d) Height reached and total time of return? (g = 9.8 m s?�, neglect air resistance).
Answer: (a) Downward; (b) v = 0, a = ?9.8 m/s�; (c) signs depend on chosen axis; (d) h = **44.1 m**, t = **6 s**.
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