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Physics
Mark the true statement. A particle in one-dimensional motion
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Q. Mark the true statement. A particle in one-dimensional motion
Motion in a Straight Line
A
with zero speed at an instant may have non-zero acceleration at that instant
0%
B
with non-zero speed may have non-zero velocity
0%
C
with constant speed, may not have zero acceleration
0%
D
with positive value of acceleration must be speeding up
100%
Solution:
A ball thrown vertically up has zero speed at the highest point, but an acceleration vertically downwards.