Which of the following is a vector quantity.
Distance
Speed
Velocity
Time
Weight of a body is measured by
inertial balance
physical balance
beem balance
spring balance
With increase in mass weight of body____ .
increase
decrease
remains same
none of these
In a vaccum chamber, a coin and a feather are dropped from the same height at the same time which of them will reach the bottom surface first
coin
feather
both of them will reach the bottom at the same time
can not be predicted.