3 A goalkeeper in a game of football pulls his hands backwards after holding the
ball shot at the goal. This enables the goalkeeper to:
1
(a) keep the ball in hands firmly.
(b) reduce the force exerted by the ball.
(c) to exert larger force on the ball.
(d) to increase the force exerted by the ball.
4 The force needed to speed up a car with a rate of 5ms–2, if the mass of the car is
1000 kg is:
1
(a) 4500 N.
(b) 5000 N.
(c) 4000 N.
(d) 5500 N.
5 During a planned manoeuvre in a space flight, a free-floating astronaut A pushes
another free-floating astronaut B, the mass of A being greater than that of B.
Then, the magnitude of the force exerted by astronaut A on astronaut B is:
1
(a) equal to zero.
Answers
Answered by
2
Answer ⤵️
A large force that acts in a very short duration of time is referred to as impulsive force. This force which is large due to a high speed such as a kick of a football may be disastrous as the momentum change is large and hence a goalkeeper holds his hand backwards in order to reduce the force exerted on his hands
Answered by
1
Answer ⤵️
Answer ⤵️A large force that acts in a very short duration of time is referred to as impulsive force. This force which is large due to a high speed such as a kick of a football may be disastrous as the momentum change is large and hence a goalkeeper holds his hand backwards in order to reduce the force exerted on his hands
HOPE SO IT WILL HELP......
PLEASE MARK IT AS BRAINLIST.....
Similar questions