Wednesday, October 21, 2020
A hot-air balloon is moving vertically upwards with a constant speed of 3.00 m s-1.
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Question 37 A hot-air balloon is moving vertically upwards with a constant speed of 3.00 m s -1 . A sandbag is dropped from the balloon....
Sunday, October 18, 2020
A metal ball of mass 40 g falls vertically onto a spring, as shown in Fig. 4.1.
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Question 17 A metal ball of mass 40 g falls vertically onto a spring, as shown in Fig. 4.1. Fig. 4.1 (not to scale) The sprin...
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